A miniature mining excavator

Abstract

This invention relates to a miniature mining excavator, comprising a base, a working platform, a hydraulic control device, and a digging mechanism. The working platform is mounted on the base and includes a fixed plate and a steering plate. The digging mechanism is mounted on the fixed plate, and the hydraulic control device is located on the steering plate. Steering hydraulic cylinders are mounted on both sides of the steering plate. The digging mechanism includes a digging bucket, a digging bucket hydraulic cylinder, a stick, a stick hydraulic cylinder, a boom, and a boom hydraulic cylinder. The boom is rotatably connected to the steering plate, and the two ends of the boom hydraulic cylinder are respectively mounted on the steering plate and inside the boom. The upper part of the boom is connected to the stick, and the two ends of the stick hydraulic cylinder are rotatably mounted inside the stick and the boom, respectively. A digging bucket is mounted on the stick, and the two ends of the digging bucket hydraulic cylinder are respectively mounted on the digging bucket and the stick. Adjustment devices and support devices are provided on both sides of the working platform on the base. It can be used in mines where large machinery cannot enter, and the working height can be adjusted.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of micro mining excavator, belong to excavating equipment technical field. BACKGROUND

[0002] Mechanical straight shovel excavator, also known as mining excavator, is a kind of special equipment for open-pit mining, the existing mining excavator mainly includes rotating platform, A frame, lifting arm, bucket rod, bucket, pushing device, lifting device, cable and lifting wire rope.

[0003] Chinese patent with publication number CN201172833Y discloses a kind of micro mining excavator, the utility model provides a kind of micro mining excavator, mainly including platform base 1, work platform 2, hydraulic control mechanism 3 and excavating mechanism 4, excavating mechanism 4 is by excavating bucket 41, excavating bucket hydraulic cylinder 42, bucket rod 43, bucket rod hydraulic cylinder 44, arm rod 45 and arm rod hydraulic cylinder 46 are constituted, excavating mechanism 4 is installed on work platform 2, work platform 2 and hydraulic control mechanism 3 are installed on platform base 1, work platform 2 is connected with the platform hydraulic cylinder 21 on platform base 1, to realize the left and right rotation of excavating mechanism 4, increase the working range of excavating mechanism 4.The above-mentioned one kind of micro mining excavator does not have the facility of adjusting height, cannot work in the mine facing different height. SUMMARY

[0004] In order to solve the above-mentioned problems existing in the prior art, the present application provides a kind of micro mining excavator, which can be used in places where large machinery cannot enter the mine, and can ensure the safety and stability of operation and adjust the working height.

[0005] The technical scheme of the present application is as follows:

[0006] A kind of micro mining excavator, including base, work platform, hydraulic control device and excavating mechanism;The work platform is installed on the base, and the work platform includes a fixed plate and a steering plate;The excavating mechanism is installed on the fixed plate, and the hydraulic control device is arranged on the steering plate, and steering hydraulic cylinders are installed on both sides of the steering plate;The excavating mechanism includes an excavating bucket, an excavating bucket hydraulic cylinder, a bucket rod, a bucket rod hydraulic cylinder, an arm rod and an arm rod hydraulic cylinder;The arm rod is rotatably connected to the end of the steering plate, and the arm rod hydraulic cylinder is rotatably installed at both ends on the steering plate and in the arm rod;The arm rod is rotatably connected to the bucket rod above, and the bucket rod hydraulic cylinder is rotatably installed at both ends in the arm rod and the bucket rod;The excavating bucket is installed at the end of the bucket rod, and the excavating bucket hydraulic cylinder is rotatably installed at both ends on the excavating bucket and the bucket rod;The adjusting device and the supporting device are arranged on both sides of the work platform on the base.

[0007] The support device comprises a hydraulic support, the bottom surface of the hydraulic support is fixed on the base; a top beam is fixedly installed at the top end of the hydraulic support; and the support device further comprises a support shell fixedly installed around the bottom surface of the hydraulic support.

[0008] The adjusting device comprises a push-up shell, the outer wall of the push-up shell is fixedly connected with the base, and a hydraulic push-up rod is arranged inside the push-up shell; and the push-up shell is lifted through the hydraulic push-up rod.

[0009] The connecting plates are fixedly connected with the support shell and the push-up shell through bolts.

[0010] The lifting rings are welded on the two support shells.

[0011] The base is provided with a roller away from the direction of the excavating mechanism.

[0012] The connecting rods are fixedly installed at the ends of the rollers.

[0013] The support rods are arranged on the base in the direction opposite to the connecting rods, and the support rods and the rollers are matched to support the excavator.

[0014] The hydraulic push-up rod is provided with a stable base plate at the bottom, which is used for fixing the excavator when the hydraulic push-up rod lifts the push-up shell and drives the base to move upward.

[0015] The fixed plates are arranged on the two sides of the top beam and are matched with the hydraulic supports, and the fixed plates are fixedly connected with the two sides of the hydraulic supports through bolts.

[0016] The present application has the following advantages:

[0017] The device can make the top beam top on the roof of the tunnel during work, and increase the safety and stability of operation.

[0018] The device can be lifted upward through the hydraulic push-up rod, the push-up shell is fixed above the hydraulic push-up rod, the push-up shell is fixedly connected with the base, and the base can be driven to move upward, so that the overall working height is improved; and the cooperation between the adjusting device and the support device can further improve the supporting height and better cooperate with different working sites.

[0019] The device is provided with steering hydraulic cylinders on the two sides, which drive the steering plates to rotate, the tail end of the excavating mechanism is connected with the steering plates, and the steering function of the excavator can be realized. DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a side view of the present invention;

[0022] Figure 3 For the present invention Figure 2 Internal structure diagram of A;

[0023] Figure 4 This is a schematic diagram of the regulating device of the present invention.

[0024] The reference numerals in the figure are as follows:

[0025] 1. Base; 2. Working platform; 3. Hydraulic control device; 4. Excavating mechanism; 5. Hydraulic support; 6. Connecting plate; 7. Hydraulic push rod; 8. Roller; 9. Support rod; 21. Fixing plate; 22. Steering plate; 23. Steering hydraulic cylinder; 41. Excavating bucket; 42. Excavating bucket hydraulic cylinder; 43. Stick; 44. Stick hydraulic cylinder; 45. Boom; 46. Boom hydraulic cylinder; 51. Top beam; 52. Support shell; 53. Lifting ring; 54. Fixing plate; 71. Push shell; 72. Stabilizing chassis; 81. Connecting rod. Detailed Implementation

[0026] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0027] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 The invention provides a technical solution:

[0028] A mini mining excavator includes a base 1, a working platform 2, a hydraulic control device 3, and an excavating mechanism 4. The working platform 2 is mounted on the base 1 and includes a fixed plate 21 and a steering plate 22. The excavating mechanism 4 is mounted on the fixed plate 21, and the hydraulic control device 3 is disposed on the steering plate 22. Steering hydraulic cylinders 23 are mounted on both sides of the steering plate 22. The excavating mechanism 4 includes a bucket 41, a bucket hydraulic cylinder 42, a stick 43, a stick hydraulic cylinder 44, a boom 45, and a boom hydraulic cylinder 46. The boom 45 is rotatably connected to the end of the steering plate 22, and the two ends of the boom hydraulic cylinder 46 are rotatably mounted on the steering plate 22. The upper part of the boom 45 is rotatably connected to the stick 43. The two ends of the stick hydraulic cylinder 44 are rotatably installed in the boom 45 and the stick 43 respectively. The digging bucket 41 is installed at the end of the stick 43. The two ends of the digging bucket hydraulic cylinder 42 are rotatably installed on the digging bucket 41 and the stick 43 respectively. Adjustment devices and support devices are provided on the left and right sides of the working platform 2 on the base 1. Specifically, the adjustment device can be used to adjust the working height of the mining excavator, and the support device can increase the safety and stability of operation during work. Furthermore, the steering function of the excavator can be realized by driving the steering plate 22 through the steering hydraulic cylinder 23.

[0029] Furthermore, the support device includes a hydraulic prop 5, the bottom of which is fixed to the base 1; a top beam 51 is fixedly installed on the top of the hydraulic prop 5, and the support device also includes a prop housing 52 fixedly installed around the bottom of the hydraulic prop 5; specifically, the hydraulic prop 5 pushes the top beam 51 upward, so that during operation, the top beam 51 can be pushed against the roof of the tunnel to ensure the stability of the operation.

[0030] Furthermore, the adjustment device includes a lifting housing 71, the outer wall of which is fixedly connected to the base 1, and a hydraulic lifting rod 7 is provided inside the lifting housing 71; the lifting housing 71 is raised and lowered by the hydraulic lifting rod 7; when facing a higher working area, the lifting housing 71 is pushed upward by the hydraulic lifting rod 7, which simultaneously drives the base 1 to move, thus completing the raising of the excavating mechanism 4.

[0031] Furthermore, connecting plates 6 are installed between the adjacent outer walls on both sides of the support shell 52 and the lifting shell 71. The connecting plates 6 are used to fix the support shell 52 and the lifting shell 71 with bolts. Fixing the lifting shell 71 and the support shell 52 further maintains the stability of the overall device.

[0032] Furthermore, lifting rings 53 are welded to the outer shells 52 of both side pillars; the entire mining excavator can be hoisted by pulling the two lifting rings 53.

[0033] Furthermore, the base 1 is equipped with rollers 8 in a direction away from the excavation mechanism 4, which facilitates the movement and operation of the mining excavator.

[0034] Furthermore, connecting rods 81 are inclined downwards on both sides of the base 1 away from the excavation mechanism 4. Rollers 8 are fixedly installed at the ends of the connecting rods 81. Because the mining excavator is relatively small, it is easy to adapt to places where large machinery cannot enter. Therefore, the mining excavator can be moved by tilting it slightly backward, using the rollers 8 as the fulcrum, and pushing the excavator forward.

[0035] Furthermore, both sides of the base 1 are provided with downwardly inclined support rods 9 in the opposite direction to the connecting rod 81. The support rods 9 cooperate with the rollers 8 to support the excavator. When the excavator needs to work, the support rods 9 and the bottom surface of the rollers 8 are kept on the same horizontal line to stabilize the excavator during operation.

[0036] Furthermore, a sturdy chassis 72 is installed at the bottom of the hydraulic lift rod 7 to fix the excavator when the hydraulic lift rod 7 lifts the lifting housing 71 upward and drives the base 1 to move upward.

[0037] Furthermore, fixing plates 54 that conform downward to the hydraulic support 5 are provided on both sides of the top beam 51, and the fixing plates 54 are fixed to both sides of the hydraulic support 5 by bolts.

[0038] Working principle and implementation examples:

[0039] This invention provides a miniature mining excavator that can be used in mines where large machinery cannot access. It is relatively small in size. During operation, the operator tilts the excavator backward, using the rollers 8 as leverage points to propel it forward. When finished, the excavator is returned to a stable position, with support rods 9 supporting the ground to ensure overall stability. The excavation mechanism 4 is controlled by a hydraulic operating device 3. The excavating bucket 41 has a rectangular structure with a pointed tip, and only has digging function, capable of excavating difficult-to-excavate soil and rock in the mine. When the excavator is in operation, the hydraulic support 5 pushes the top beam 51 upward, placing it against the roof of the tunnel to ensure operational stability. When facing a higher work area, the hydraulic push rod 7 pushes the lifting shell 71 upward, simultaneously moving the base 1, thus raising the excavating mechanism 4. At this time, the rollers 8 and support rods 9 supporting the excavator are raised, and the stable chassis 72 serves as the support for the entire excavator, fixing it in place for operation. Simultaneously, the steering hydraulic cylinder 23 can drive the steering plate 22 to achieve the excavator's steering function.

[0040] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A micro-mining excavator, characterized by: The utility model provides a kind of excavator, including base (1), work platform (2), hydraulic operating device (3) and excavating mechanism (4);The work platform (2) is installed on base (1), and the work platform (2) includes fixed plate (21) and steering plate (22);The excavating mechanism (4) is installed on fixed plate (21), and the hydraulic operating device (3) is arranged on steering plate (22), and both sides of the steering plate (22) are equipped with steering hydraulic cylinder (23);The excavating mechanism (4) includes excavating bucket (41), excavating bucket hydraulic cylinder (42), bucket rod (43), bucket rod hydraulic cylinder (44), arm rod (45) and arm rod hydraulic cylinder (46);The arm rod (45) is rotatably connected with the end of steering plate (22), and the both ends of arm rod hydraulic cylinder (46) are rotatably installed in steering plate (22) and arm rod (45) respectively;The arm rod (45) is rotatably connected with bucket rod (43) above, and the both ends of bucket rod hydraulic cylinder (44) are rotatably installed in arm rod (45) and bucket rod (43) respectively;The end of bucket rod (43) is equipped with excavating bucket (41), and the both ends of excavating bucket hydraulic cylinder (42) are rotatably installed on excavating bucket (41) and bucket rod (43) respectively;Base (1) is equipped with adjusting device and supporting device on both sides of work platform (2);The supporting device includes hydraulic support (5), and the bottom surface of the hydraulic support (5) is fixed on base (1);The top end of the hydraulic support (5) is fixedly installed with top beam (51), and the supporting device further includes support shell (52) fixedly installed around the bottom surface of the hydraulic support (5);The adjusting device includes push-up shell (71), and the outer wall of the push-up shell (71) is fixedly connected with base (1), and the inside of the push-up shell (71) is provided with hydraulic push-up rod (7);The push-up shell (71) is lifted by hydraulic push-up rod (7).

2. A micro-mining excavator as claimed in claim 1, characterized in that: The both sides of the support shell (52) and the push-up shell (71) are equipped with connecting plate (6) between adjacent outer walls, and the connecting plate (6) is fixed with the support shell (52) and the push-up shell (71) by bolts.

3. A micro-mining excavator as claimed in claim 1, characterized in that: The both sides of the support shell (52) are welded with lifting ring (53).

4. A micro-mining excavator as claimed in claim 1, characterized in that: Base (1) is provided with roller (8) away from the direction of excavating mechanism (4).

5. A micro-mining excavator as claimed in claim 4, characterized in that: The both sides of base (1) are provided with connecting rod (81) inclined downward away from the direction of excavating mechanism (4), and the roller (8) is fixedly installed at the end of the connecting rod (81).

6. A micro-mining excavator as claimed in claim 5, characterized in that: The both sides of base (1) are provided with inclined downward supporting rod (9) opposite to the connecting rod (81), and the supporting rod (9) cooperates with the roller (8) to support the excavator.

7. A micro-mining excavator as claimed in claim 1, characterized in that: The bottom of the hydraulic push-up rod (7) is provided with stable chassis (72) for fixing the excavator when the hydraulic push-up rod (7) lifts the push-up shell (71) and drives base (1) to move upward.

8. A micro-mining excavator as claimed in claim 1, characterized in that: The both sides of the top beam (51) are provided with fixed sheet (54) adhering to the hydraulic support (5) downward, and the fixed sheet (54) is fixed on the both sides of the hydraulic support (5) by bolts.

Images