Turnover mechanism, large arm type propelling beam assembly and mining trolley

Abstract

The utility model relates to the technical field of mining machinery, in particular to a turnover mechanism, a big arm type propelling beam assembly and a mining trolley, which comprises a first rotating seat, a second rotating seat and a third rotating seat, the support is hinged to the first rotating seat, the support can rotate relative to the first rotating seat, and the support is provided with a rotating axis B; the axis B is perpendicular to the axis A; the first driving assembly is mounted on the first rotating seat and is used for driving the bracket to rotate; and the connecting seat is fixedly connected with the bracket. The problem that the telescopic arm shields the visual field is solved, and an operator can observe the position and the working state of the propelling beam in real time. In addition, the propelling beam and the turnover mechanism are aligned with the telescopic arm, and the center of the propelling beam and the center of the telescopic arm are approximately positioned on the same plane, so that the mining requirement of a single center can be met, the problem that the consumption of parts is increased is solved, the cost of spare parts and the failure rate are reduced, and the use efficiency of equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of mining machinery technology, specifically to a tilting mechanism, a boom-type propulsion beam assembly, and a mining trolley. Background Technology

[0002] Deep-hole mining trolleys are high-efficiency hydraulic equipment used in underground drilling and blasting operations in mines. Currently, the mainstream mining trolleys on the market are the sliding table type and the boom type. The boom type mining trolley is equipped with a boom at the front end, which is applicable to a wide range of roadways. When the equipment moves underground, the boom can swing left and right, which improves the main unit's visibility and maneuverability.

[0003] For example, Chinese invention patent CN119531728A discloses a high-safety drilling and anchoring integrated trolley, which includes a luffing cylinder installed between a cross hinge shaft and the lower end of a telescopic boom. The two ends of the luffing cylinder are rotatably connected to the boom connecting seat and the telescopic boom, respectively. A basket is rotatably connected to the front end of one telescopic boom. A follower cylinder is installed between the bottom of the basket and the front end of the telescopic boom, and its extended end is rotatably connected to the basket. A synchronization cylinder is also installed between the lower end of the telescopic boom with the basket and the corresponding cross hinge shaft. A swing frame unit is installed at the front end of the other telescopic boom. A working unit is installed at the end of the swing frame unit away from the telescopic boom. The swing frame unit includes a slewing seat, and the end of the slewing seat facing the telescopic boom and the working unit... A rotary motor is fixedly connected to the telescopic boom. One rotary motor is fixedly connected to the end of the telescopic boom, and the other rotary motor is rotatably connected to a swing frame. A swing frame body is fixedly connected to the end of the swing frame body away from the rotary motor. A propulsion cylinder is fixedly connected to the upper end of the swing frame body. Two lower limit clamps are fixedly connected to the outer end of the fixed section of the propulsion cylinder. A propulsion beam connecting seat is fixedly connected to the end of the extended section of the propulsion cylinder. The working unit is installed on the propulsion beam connecting seat. The working unit slides and matches with the two lower limit clamps. The working unit is fixedly connected to the propulsion cylinder. The working unit includes a propulsion beam, a rock drill and two clamps installed on the upper end of the propulsion beam, and a drill rod installed on the end of the rock drill. The drill rod matches with the two clamps.

[0004] In the aforementioned prior art, the top-down view (as shown in the aforementioned patent drawings) Figure 3 In this configuration, the working unit (i.e., the propulsion beam) is located to the side of the telescopic boom. When the telescopic boom is not swinging, the operator in the cab can fully observe the working status of the propulsion beam. However, when the telescopic boom swings to the side, it blocks the operator's view, obstructing their observation of the propulsion beam's working status. Furthermore, this offset structure of the propulsion beam relative to the boom can cause uneven stress on the overall boom structure and some components, leading to increased spare parts consumption, higher spare parts costs, increased failure rate, and reduced equipment efficiency. Utility Model Content

[0005] To address the issues of obstructed vision and uneven force distribution caused by telescopic booms in existing technologies, the purpose of this utility model is to provide a tilting mechanism, a boom-type propulsion beam assembly, and a mining trolley.

[0006] The technical solution provided by this utility model is as follows:

[0007] In a first aspect, a flipping mechanism includes: a first rotating seat having a rotation axis A; a bracket hinged to the first rotating seat and rotatable relative to the first rotating seat, the bracket having a rotation axis B; axis B being perpendicular to axis A; a first driving assembly mounted on the first rotating seat and used to drive the bracket to rotate; and a connecting seat fixedly connected to the bracket.

[0008] As an optional technical solution of the first aspect, the bracket is generally "L" shaped, the "L" shaped bracket includes a first mounting part and a second mounting part connected to the first mounting part; wherein, the first mounting part is hinged to the first rotating seat; and the second mounting part is fixedly connected to the connecting seat.

[0009] Optionally, a projection plane parallel to axis A and parallel to axis B is selected, and the connecting seat and the first rotating seat are projected onto this projection plane. The distance between the projection of the connecting seat and the projection of the first rotating seat in the direction parallel to axis B is denoted as H1; where H1≥0cm.

[0010] Optionally, it further includes a first connecting rod and a second connecting rod; the first drive assembly includes a first hydraulic cylinder; wherein, one end of the first connecting rod is fixedly connected to the first mounting portion, and the other end of the first connecting rod is hinged to the first rotating seat at a first hinge point; one end of the second connecting rod is fixedly connected to the first mounting portion, and the other end of the second connecting rod is hinged to the piston rod of the first hydraulic cylinder at a second hinge point; the base of the first hydraulic cylinder is hinged to the first rotating seat at a third hinge point.

[0011] Secondly, a boom-type propulsion beam assembly includes a tilting mechanism as described in the first aspect or any optional technical solution of the first aspect; it also includes a propulsion beam and a telescopic arm; the propulsion beam is fixedly connected to a connecting seat; the first rotating seat is connected to the telescopic arm; a projection plane parallel to axis A and parallel to axis B is taken, and the telescopic arm and the propulsion beam are projected onto this projection plane; the projection of the telescopic arm is taken as the bisecting line F1 in the direction parallel to axis B, and the projection of the propulsion beam is taken as the bisecting line F2 in the direction parallel to axis B; the dimension of the propulsion beam projection in the direction parallel to axis B is denoted as L, and the distance between F1 and F2 in the direction parallel to axis B is denoted as H2; 0cm≤H2≤L / 2.

[0012] As a second aspect, an optional technical solution is that the central axis of the telescopic arm coincides with axis A.

[0013] As an optional technical solution in the second aspect, the telescopic arm includes a movable arm and a fixed arm; the movable arm is connected to the first rotating seat, and the fixed arm is connected to the fixed seat.

[0014] Optionally, it also includes a second drive assembly for driving the telescopic boom to swing.

[0015] Furthermore, the second drive assembly includes a pair of second hydraulic cylinders, one end of which is hinged to the movable arm at a fourth hinge point; the other end of which is hinged to the first adapter block at a fifth hinge point; the first adapter block is hinged to the fixed seat at a sixth hinge point; the fixed arm is hinged to the second adapter block at a seventh hinge point; and the second adapter block is hinged to the fixed seat at an eighth hinge point.

[0016] Thirdly, a mining trolley includes the boom-type propulsion beam assembly from the second aspect or any of the optional technical solutions in the second aspect.

[0017] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0018] The tilting mechanism proposed in this utility model includes a bracket and a connecting seat connected to the bracket. The offset connecting seat provides installation space for the push beam. When the push beam is connected to the connecting seat, it is basically positioned corresponding to the axis of the first rotating seat. At this point, connecting the tilting mechanism to the telescopic arm aligns the telescopic arm with the push beam. Even if the telescopic arm swings to the side, it will not obstruct the view between the push beam and the operator, solving the problem of the telescopic arm blocking the operator's view. The operator can observe the position and working status of the push beam in real time. Furthermore, because the push beam and tilting mechanism are aligned with the telescopic arm, the center of the push beam and the center of the telescopic arm are roughly on the same plane, meeting the requirements of single-center mining. The telescopic arm also experiences more uniform force, avoiding increased component wear due to uneven force distribution, reducing spare parts costs and failure rates, and improving equipment efficiency. Attached Figure Description

[0019] Figure 1 This is a perspective view of the flipping mechanism in one embodiment of this application;

[0020] Figure 2 This is a schematic diagram of the A-axis and B-axis of the flipping mechanism in one embodiment of this application;

[0021] Figure 3 This is a schematic diagram of the spacing H1 in one embodiment of this application;

[0022] Figure 4 This is a schematic diagram of the propulsion beam being installed from one perspective in one embodiment of this application;

[0023] Figure 5This is a schematic diagram of the propulsion beam being installed from another perspective in one embodiment of this application;

[0024] Figure 6 This is a schematic diagram of a boom-type propulsion beam assembly in one embodiment of this application;

[0025] Figure 7 This is an overall three-dimensional view of the boom-type propulsion beam in one embodiment of this application;

[0026] Figure 8 This is a schematic diagram of the installation of a pair of second hydraulic cylinders in one embodiment of this application;

[0027] Figure 9 This is a schematic diagram of the installation of the first adapter block and the second adapter block in one embodiment of this application.

[0028] Explanation of the labels in the diagram:

[0029] First rotating seat 101, first mounting part 201-1, second mounting part 201-2, first connecting rod 202, first hinge point 202-1, second connecting rod 203, second hinge point 203-1, first drive assembly 301, third hinge point 301-1, connecting seat 401, push beam 402, fixed seat 501, fixed arm 502, moving arm 503, second hydraulic cylinder 504, fourth hinge point 504-1, first transition block 505, fifth hinge point 505-1, sixth hinge point 505-2, second transition block 506, seventh hinge point 506-1, eighth hinge point 506-2. Detailed Implementation

[0030] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments.

[0031] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the invention. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed in this utility model. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity and not intended to limit the scope of implementation. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0032] In one embodiment, such as Figure 1-2As shown, this application proposes a flipping mechanism, including a first rotating seat 101, a bracket, a first driving assembly 301, and a connecting seat 401. The first rotating seat 101 has a rotation axis A, meaning it may include a driving part and a rotating part. The driving part can drive the rotating part to rotate around axis A. Alternatively, the first rotating seat 101 may only include the rotating part. The first rotating seat 101 can be connected to a separately configured driving part to drive the first rotating seat 101 to rotate around axis A.

[0033] The bracket is hinged to the first rotating seat 101. Specifically, the bracket is hinged to the rotating part of the first rotating seat 101, meaning that when the rotating part of the first rotating seat 101 rotates around axis A, the bracket can also rotate around axis A along with the rotating part. Furthermore, because the bracket is hinged to the first rotating seat 101, it can also rotate relative to the first rotating seat 101. When the bracket rotates relative to the first rotating seat 101, it has a rotation axis B, which is perpendicular to axis A.

[0034] The function of the first drive assembly 301 is to drive the bracket to rotate relative to the first rotating seat 101. The first drive assembly 301 is mounted on the first rotating seat 101. Specifically, the first drive assembly 301 is mounted on the rotating part of the first rotating seat 101. When the first rotating seat 101 rotates about axis A, the first drive assembly 301 and the bracket also rotate about axis A together. The first drive assembly 301 can also independently drive the bracket to rotate relative to the first drive seat 101.

[0035] A connecting seat 401 is also installed on the bracket. The connecting seat 401 is fixedly connected to the bracket and connected to the push beam. Thus, the push beam can be controlled to rotate around axis A and around axis B through the flipping mechanism.

[0036] Specifically, such as Figure 3 As shown, a projection plane parallel to axis A and parallel to axis B is taken, and the connecting seat 401 and the first rotating seat 101 are projected onto this projection plane. The distance between the projection of the connecting seat and the projection of the first rotating seat in the direction parallel to axis B is denoted as H1; where H1≥0cm.

[0037] The distance between the projections of the connecting seat and the first rotating seat in the direction parallel to axis B refers to the distance between the edge of the connecting seat projection closest to the projection of the first rotating seat, which is denoted as the first edge. Figure 3 The image shown is the lower side of the connecting seat projection. The edge of the first rotating seat projection closest to the connecting seat projection is denoted as the second edge. Figure 3 The image shows the upper side of the projection of the first rotating seat. The distance between the first edge and the second edge in the direction parallel to axis B is denoted as H1.

[0038] In other words, at the position directly opposite to the first rotating seat 101 (in the direction of axis A extension), the connecting seat 401 does not form an obstruction. At this time, an installation space for installing the push beam is formed at the position directly opposite to the first rotating seat 101. When the push beam is installed here, the push beam is basically aligned with the first rotating seat 101. At this time, when the push beam rotates around axis A, the center of the push beam and axis A are basically on the same plane, and the force is relatively even.

[0039] Regarding the structure of the stent, in one alternative implementation scheme, such as Figure 2-3 As shown, the bracket is roughly L-shaped, comprising a first mounting portion 201-1 and a second mounting portion 201-2 connected to the first mounting portion. The first mounting portion 201-1 is hinged to the first rotating seat 101, and the second mounting portion 201-2 is fixedly connected to the connecting seat 401. The bracket is L-shaped, meaning that by setting the second mounting portion 201-2 to avoid a position directly opposite the first rotating seat 101, space is created for mounting the push beam.

[0040] Specifically, it also includes a first connecting rod 202 and a second connecting rod 203. The first drive assembly 301 includes a first hydraulic cylinder. One end of the first connecting rod 202 is fixedly connected to the first mounting part 201-1, and the other end of the first connecting rod 202 is hinged to the first rotating seat 101 at a first hinge point 202-1. One end of the second connecting rod 203 is fixedly connected to the first mounting part 201-1, and the other end of the second connecting rod 203 is hinged to the piston rod of the first hydraulic cylinder at a second hinge point 203-1. The base of the first hydraulic cylinder is hinged to the first rotating seat 101 at a third hinge point 301-1. By extending and retracting the piston rod of the first hydraulic cylinder, the "L"-shaped bracket can be driven to rotate around axis B.

[0041] In one embodiment, this application also proposes a boom-type propulsion beam assembly, including the tilting mechanism in the above embodiments, and further including a propulsion beam 401 and a telescopic boom.

[0042] Specifically, such as Figure 4-5 As shown, the propulsion beam 402 is fixedly connected to the connecting seat 401, which is approximately located in the middle of the propulsion beam 402, at which point the force on each component is relatively even. The first rotating seat 101 is connected to the telescopic arm. Specifically, if the first rotating part 101 includes a driving part and a rotating part, then the driving part should be connected to the telescopic arm; if the first rotating seat 101 only includes a rotating part, then the driving part that drives the rotating part to rotate around axis A should be installed on the telescopic arm, and then the driving part should be connected to the rotating part of the first rotating seat 101.

[0043] like Figure 6As shown, a projection plane parallel to axis A and axis B is taken, and the telescopic arm and the propulsion beam 402 are projected onto this projection plane. The projection of the telescopic arm is bisected by line F1 parallel to axis B, and the projection of the propulsion beam 402 is bisected by line F2 parallel to axis B. The dimension of the propulsion beam 402 projected in the direction parallel to axis B is denoted as L, and the distance between F1 and F2 in the direction parallel to axis B is denoted as H2; 0cm≤H2≤L / 2. At this time, the propulsion beam 402 is basically located in the telescopic arm's extension direction, that is, not on the side of the telescopic arm. When the telescopic arm swings, the propulsion beam 402 is always located in the telescopic arm's extension direction, and the telescopic arm will not obstruct the view. The operator can observe the position and working status of the propulsion beam in real time. Moreover, the propulsion beam and the tilting mechanism are aligned with the telescopic arm, and the center of the propulsion beam and the center of the telescopic arm are roughly on the same plane, which can meet the single-center mining requirements. In addition, the telescopic arm is subjected to relatively uniform force, avoiding increased component consumption due to uneven force, reducing spare parts costs and failure rates, and improving equipment utilization efficiency.

[0044] Preferably, the central axis of the telescopic boom coincides with axis A. The central axis of the telescopic boom is the axis that passes through the intersection of the diagonals of the telescopic boom and is parallel to the telescopic boom's extension direction. When the central axis of the telescopic boom coincides with axis A, that is, in the projection plane, the bisector F1 coincides with axis A.

[0045] At this point, the first rotating seat 101 and the telescopic arm are basically aligned, the force on each component is relatively even, and the telescopic arm will not obstruct the operator's view.

[0046] In one optional embodiment of the telescopic boom structure, the telescopic boom includes a movable arm 503 and a fixed arm 502. The movable arm 503 can slide relative to the fixed arm 502 to achieve the telescopic function. Specifically, the movable arm 503 is connected to the first rotating seat 101, and the fixed arm 502 is connected to the fixed seat 501. It should be noted that if the first rotating part 101 includes both a driving part and a rotating part, then the driving part should be connected to the movable arm 503; if the first rotating seat 101 only includes a rotating part, then the driving part that drives the rotating part to rotate around axis A should be mounted on the movable arm 503.

[0047] It also includes a second drive assembly for driving the telescopic boom to swing. For example... Figure 7-9 As shown, the second drive assembly includes a pair of second hydraulic cylinders 504. One end of each second hydraulic cylinder 504 is hinged to the movable arm 503 at a fourth hinge point 504-1; the other end of each second hydraulic cylinder 504 is hinged to a first adapter block 505 at a fifth hinge point 505-1. The first adapter block 505 is hinged to a fixed base 501 at a sixth hinge point 505-2. The fixed arm 502 is hinged to a second adapter block 506 at a seventh hinge point 506-1, and the second adapter block 506 is hinged to the fixed base 501 at an eighth hinge point 506-2.

[0048] When the piston rods of the pair of second hydraulic cylinders 504 extend synchronously, the moving arm 503 swings away from the second hydraulic cylinders 504 (raised in the figure); when the piston rods of the pair of second hydraulic cylinders 504 retract synchronously, the moving arm 503 swings towards the second hydraulic cylinders 504 (lowered in the figure); when the piston rod of one of the pair of second hydraulic cylinders 504 extends and the piston rod of the other second hydraulic cylinder 504 retracts, the telescopic arm swings towards the side of the second hydraulic cylinder 504 whose piston rod has retracted.

[0049] In one embodiment, this application also proposes a mining trolley that includes the aforementioned boom-type propulsion beam assembly.

[0050] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A flipping mechanism, characterized in that, include: A first rotating seat (101) has a rotation axis A; The bracket is hinged to the first rotating seat (101) and is rotatable relative to the first rotating seat (101). The bracket has a rotation axis B; axis B is perpendicular to axis A. A first drive assembly (301) is mounted on a first rotating base (101) and is used to drive the bracket to rotate; Connector (401), which is fixedly connected to the bracket.

2. The flipping mechanism according to claim 1, characterized in that: The bracket is generally L-shaped, and the L-shaped bracket includes a first mounting part (201-1) and a second mounting part (201-2) connected to the first mounting part; in, The first mounting part (201-1) is hinged to the first rotating seat (101); The second mounting part (201-2) is fixedly connected to the connecting seat (401).

3. The flipping mechanism according to claim 1, characterized in that: Take a projection plane that is parallel to axis A and parallel to axis B, and let the connecting seat (401) and the first rotating seat (101) project onto this projection plane. The distance between the projection of the connecting seat and the projection of the first rotating seat in the direction parallel to axis B is denoted as H1. Where H1≥0cm.

4. The flipping mechanism according to claim 2, characterized in that: It also includes a first link (202) and a second link (203); the first drive assembly (301) includes a first hydraulic cylinder; in, One end of the first connecting rod (202) is fixedly connected to the first mounting part (201-1), and the other end of the first connecting rod (202) is hinged to the first rotating seat (101) at the first hinge point (202-1); One end of the second connecting rod (203) is fixedly connected to the first mounting part (201-1), and the other end of the second connecting rod (203) is hinged to the piston rod of the first hydraulic cylinder at the second hinge point (203-1). The base of the first hydraulic cylinder is hinged to the first rotating seat (101) at the third hinge point (301-1).

5. A boom-type propulsion beam assembly, characterized in that: Includes the flipping mechanism as described in any one of claims 1-4; It also includes a propulsion beam (402) and a telescopic boom; The propulsion beam (402) is fixedly connected to the connecting seat (401); The first rotating base (101) is connected to the telescopic arm; Take a projection plane that is parallel to axis A and parallel to axis B, and let the telescopic arm and the propulsion beam (402) be projected on this projection plane. Take the projection of the telescopic arm on the bisecting line F1 that is parallel to axis B, and the projection of the propulsion beam (402) on the bisecting line F2 that is parallel to axis B. The dimension of the propulsion beam (402) projected in the direction parallel to axis B is denoted as L, and the distance between F1 and F2 in the direction parallel to axis B is denoted as H2; 0cm≤H2≤L / 2.

6. The boom-type propulsion beam assembly according to claim 5, characterized in that: The central axis of the telescopic arm coincides with axis A.

7. The boom-type propulsion beam assembly according to claim 5, characterized in that: The telescopic arm includes a movable arm (503) and a fixed arm (502); The movable arm (503) is connected to the first rotating seat (101), and the fixed arm (502) is connected to the fixed seat (501).

8. The boom-type propulsion beam assembly according to claim 7, characterized in that: It also includes a second drive assembly for driving the telescopic arm to swing.

9. The boom-type propulsion beam assembly according to claim 8, characterized in that: The second drive assembly includes a pair of second hydraulic cylinders (504), one end of which is hinged to the movable arm (503) at a fourth hinge point (504-1); the other end of which is hinged to the first transition block (505) at a fifth hinge point (505-1). The first adapter block (505) is hinged to the fixed seat (501) at the sixth hinge point (505-2); The fixed arm (502) is hinged to the second adapter block (506) at the seventh hinge point (506-1), and the second adapter block (506) is hinged to the fixed seat (501) at the eighth hinge point (506-2).

10. A mining trolley, characterized in that: Includes the boom-type propulsion beam assembly as described in any one of claims 5-9.

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