Cantilever crane rotation switching device with rotation limiting function, cantilever crane and trolley

Abstract

The utility model discloses an arm support rotation switching device with a rotation limiting function, an arm support and a trolley. The arm support rotation switching device comprises a rotation seat and a limiting piece. A first connecting structure which can be matched with a speed reducer on the arm frame is arranged on the rotary seat, so that the rotary seat is rotationally connected to the side part of the arm frame; the limiting piece is provided with a second connecting structure capable of being connected with the arm frame, and the limiting piece is provided with a stopping block capable of extending to the side portion of the arm frame. A first limiting block is arranged on the rotary seat, and when the first end of the rotary seat faces the front of the arm frame, the first limiting block abuts against the top end of the stop block. The mechanical limiting device is applied to the field of tunnel construction, can play a mechanical limiting role in the rotary positioning and switching process of a gripper mechanism and / or a rock drilling mechanism, improves the construction efficiency, and avoids out-of-control swing of an arm support caused by sudden failure of a speed reducer.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to an arm slewing switching device with slewing limit, an arm and a trolley. Background Art

[0002] During the operation of the arch-anchor integrated boom system, the boom system needs to meet the needs of two operations: one is the gripper mechanism grabbing the arch frame, and the other is the rock drilling mechanism drilling into the anchor. Therefore, the gripper mechanism and the rock drilling mechanism of the arch-anchor integrated boom system need to switch back and forth to quickly adapt to the requirements of the two working conditions. In order to achieve the purpose of fast switching, a rotary switching structure is adopted. However, since the angle of the reducer rotation can only be judged by the operator's eyes, it is easy to make the rotation angle too large or too small due to careless operation, and the boom switching cannot be in place in time, which increases the adjustment time. What's more, the rotary transition may cause damage to other mechanisms or equipment, prolong the construction period, and waste time. Utility Model Content

[0003] In view of the deficiencies in the above-mentioned prior art, the utility model provides a boom rotation switching device, boom and trolley with rotation limit, which can play the role of mechanical limit in the process of rotation positioning or switching of the gripper mechanism or the rock drilling mechanism, thereby improving the construction efficiency and avoiding the uncontrolled swing of the boom caused by sudden failure of the reducer.

[0004] In order to achieve the above-mentioned purpose, the utility model provides an arm swivel switching device with swivel limit, comprising a swivel seat and a limiter;

[0005] The swivel seat is provided with a first connection structure that can be adapted to the reducer on the boom, so that the swivel seat is rotatably connected to the side of the boom;

[0006] The limiting member is provided with a second connection structure that can be connected to the arm frame, and the limiting member is provided with a blocking block that can extend to the side of the arm frame;

[0007] The swivel seat is provided with a first limit block, and when the first end of the swivel seat faces the front of the arm support, the first limit block abuts against the top end of the blocking block.

[0008] In one embodiment, a second limit block is provided on the swivel seat;

[0009] When the second end of the swivel seat faces the front of the arm, the second limiting block abuts against the bottom end of the blocking block.

[0010] In one embodiment, the first connection structure is a reducer assembly hole provided on the slewing seat;

[0011] The first limit block and the second limit block are symmetrically arranged on both sides of the reducer assembly hole.

[0012] In one embodiment, the limiting member is a plate-shaped structure, and the second connecting structure is a bolt hole provided on the limiting member.

[0013] In one of the embodiments, a hollow groove is provided on the limiting member.

[0014] In one embodiment, a third connecting structure is provided at the first end of the swivel seat for mounting a rock drilling mechanism or a gripping mechanism.

[0015] In one embodiment, a fourth connecting structure is provided at the second end of the swivel seat for installing a gripping mechanism or a rock drilling mechanism.

[0016] In one embodiment, the swivel seat includes a side plate and a rib plate;

[0017] There are two side plates, the rib plate is fixedly connected between the two side plates, and the first limit block and the second limit block are arranged on the same side plate facing the reducer.

[0018] In order to achieve the above-mentioned purpose, the utility model also provides a boom, on which the above-mentioned boom rotation switching device is provided.

[0019] In one embodiment, the boom includes a telescopic arm and a reducer disposed at an end of the boom, and an output end of the reducer faces a side of the boom;

[0020] The limiting member is fixedly clamped between the reducer and the end of the arm, and the swivel seat is fixedly assembled on the output end of the reducer.

[0021] In order to achieve the above object, the utility model also provides a trolley, on which the above arm is provided.

[0022] Compared with the prior art, the utility model has the following beneficial technical effects:

[0023] 1. The utility model forms a boom rotation switching device through a slewing seat and a limiter, and by arranging a blocking block on the limiter and a first limiter on the slewing seat, the slewing seat can accurately turn the first end toward the front of the boom during the process of being driven by the reducer to rotate, thereby realizing accurate rotation positioning of the gripping mechanism or the rock drilling mechanism without the need for human eye judgment by the operator, effectively improving the construction efficiency, and also playing a certain protective role, avoiding the uncontrolled swing of the boom caused by the sudden failure of the reducer;

[0024] 2. In the preferred embodiment of the utility model, a second limit block is arranged on the slewing seat, so that the slewing seat can accurately turn the second end toward the front of the boom during the process of being driven by the reducer to rotate. When the gripping mechanism and the rock drilling mechanism are respectively installed at the first end and the second end of the slewing seat, the gripping mechanism and the rock drilling mechanism can be accurately rotated and switched;

[0025] 3. The swivel seat and the limiter in the utility model have no necessary requirements on materials, welding positions, and manufacturing processes. The structure is simple and easy to assemble. At the same time, the mechanical limit method is adopted, which is more stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0027] Figure 1 It is a first axonometric view of the swivel seat in Embodiment 1 of the present utility model;

[0028] Figure 2 It is a second axonometric view of the swivel seat in Embodiment 1 of the present utility model;

[0029] Figure 3 It is a top view of the swivel seat in Example 1 of the utility model;

[0030] Figure 4 This is a schematic diagram of the assembly structure of the rock drilling mechanism and the gripping mechanism on the rotary seat in Example 1 of the utility model;

[0031] Figure 5 This is a front view of the position limiting member in Embodiment 1 of the present utility model;

[0032] Figure 6 This is a schematic diagram of the position structure of the first limit block, the second limit block and the blocking block in Example 1 of the utility model;

[0033] Figure 7 This is a schematic diagram of the limiting structure of the first limiting block in Example 1 of the utility model;

[0034] Figure 8 This is a schematic diagram of the limiting structure of the second limiting block in Example 1 of the utility model;

[0035] Fig. 9 This is the first axonometric view of the swivel seat in Example 2 of the utility model.

[0036] Figure numbers: slewing seat 1, side plate 101, rib plate 102, reducer assembly hole 103, mounting seat 104, first hinge hole 105, second hinge hole 106, first limit block 107, second limit block 108, limit member 2, blocking block 201, bolt hole 202, hollow groove 203, clamp 3, connecting seat 4, first connecting ear 401, second connecting ear 402, swing cylinder 5, rock drilling mechanism 6, rock drilling pitch cylinder 7, gripper mechanism 8, gripper pitch cylinder 9, boom 10.

[0037] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0040] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, a physical connection, or a wireless communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0043] Example 1

[0044] The present embodiment discloses a boom rotation switching device with rotation limit (hereinafter referred to as “boom rotation switching device”), which mainly includes a rotation seat 1 and a limit member 2.

[0045] The swivel seat 1 is provided with a first connection structure that can be adapted to the reducer on the arm 10, so that the swivel seat 1 is rotatably connected to the side of the arm 10. Figures 1 to 3 The slewing seat 1 is composed of a side plate 101 and a rib plate 102. There are two side plates 101, which are symmetrically arranged. The rib plate 102 is an arc-shaped plate or a folded plate, which is connected between the two side plates 101 by welding to improve the overall structural strength of the slewing seat 1. The first connection structure is a reducer assembly hole 103 opened on the two side plates 101, that is, the output end of the reducer on the arm 10 is inserted into the reducer assembly hole 103 on the two side plates 101 and fixedly connected to the slewing seat 1 through a fastening structure such as bolts.

[0046] In this embodiment, a third connection structure is provided at the first end of the swivel seat 1 for installing the rock drilling mechanism 6; and a fourth connection structure is provided at the second end of the swivel seat 1 for installing the gripping mechanism 8. The first end and the second end of the swivel seat 1 are located in the same length direction of the swivel seat 1. Since the swivel seat 1 can be rotatably connected to the side of the boom 10 during application, by providing the third connection structure and the fourth connection structure, the swivel seat 1 can be driven to rotate by the reducer, thereby driving the rock drilling mechanism 6 and the gripping mechanism 8 to rotate in the same direction. Since the rock drilling mechanism 6 and the gripping mechanism 8 are respectively located at the two ends of the swivel seat 1, when one of the rock drilling mechanism 6 and the gripping mechanism 8 is operating toward the front of the boom 10, the other will be stored in a position adjacent to the side of the boom 10.

[0047] In the specific implementation process, the third connection structure can adopt a mounting seat 104 welded to the first ends of the two side plates 101, and the rock drilling mechanism 6 can be installed on the rotating seat 1 through the mounting seat 104. For example, a swing cylinder 5 (or a hydraulic motor or an electric motor) can be fixed on the mounting seat 104 through a clamp 3 and bolts, and a connecting seat 4 can be fixed on the rotating output end of the swing cylinder 5 through bolts, so that the connecting seat 4 can rotate under the drive of the swing cylinder 5. Then, a first connecting ear 401 and a second connecting ear 402 are arranged on the connecting seat 4, the rock drilling mechanism 6 is hinged on the first connecting ear 401, and the rock drilling pitch cylinder 7 is hinged between the second connecting ear 402 and the rock drilling mechanism 6, that is, Figure 4 As shown. So far, the rock drilling mechanism 6 is assembled on the slewing seat 1, and the rock drilling mechanism 6 can also swing and pitch on the slewing seat 1. Of course, in the specific application process, the installation method of the rock drilling mechanism 6 on the slewing seat 1 can also adopt other structures, such as directly fixing the connecting seat 4 on the mounting seat 104, so that the rock drilling mechanism 6 has only a pitch stroke on the slewing seat 1.

[0048] In the specific implementation process, the fourth connection structure is a first hinge hole 105 and a second hinge hole 106 provided at the second ends of the two side plates 101, that is, Figure 4 As shown, the first hinge hole 105 is used to hinge the gripper mechanism 8, and the second hinge hole 106 is used to hinge the gripper pitch cylinder 9, so that the gripper mechanism 8 can be assembled on the slewing seat 1 and can also be pitched on the slewing seat 1. Of course, in the specific application process, the gripper mechanism 8 can also be installed on the slewing seat 1 in other structures, such as only using the same structure as the rock drilling mechanism 6, so that the gripper mechanism 8 can both swing and pitch, or the gripper mechanism 8 can also be directly rigidly connected to the slewing seat 1.

[0049] It is worth noting that the present embodiment is not limited to installing the rock drilling mechanism 6 and the gripping mechanism 8 at the first end and the second end of the swivel seat 1 respectively. The rock drilling mechanism 6 or the gripping mechanism 8 may also be installed at both the first end and the second end of the swivel seat 1; the rock drilling mechanism 6 or the gripping mechanism 8 may also be installed at only one end of the swivel seat 1, and the other end may be left vacant. That is, the specific assembly scheme on the swivel seat 1 may be flexibly adjusted according to construction requirements.

[0050] The stopper 2 is provided with a second connection structure that can be connected to the arm 10, and the stopper 2 is provided with a blocking block 201 that can extend to the side of the arm 10. Figure 5 The stopper 2 is a plate-like structure, and the second connection structure is a bolt hole 202 provided on the stopper 2. The stopper 2 can be fixed to the arm 10 by bolts, or the stopper 2 can be fixed to the arm 10 by welding. Preferably, the stopper 2 is provided with a hollow groove 203.

[0051] refer to Figure 6 The first limit block 107 and the second limit block 108 are provided on the side plate 101 of the slewing seat 1 facing the reducer, and the first limit block 107 and the second limit block 108 are symmetrically arranged on both sides of the reducer assembly hole 103. When the first end of the slewing seat 1 faces the front of the arm 10, the first limit block 107 abuts against the top of the blocking block 201, that is, Figure 7 When the second end of the swivel seat 1 is toward the front of the arm 10, the second limit block 108 abuts against the bottom end of the blocking block 201, that is, Figure 8 Through the first limit block 107 and the second limit block 108, the slewing seat 1 can accurately turn the first end or the second end toward the front of the boom 10 during the process of being driven by the reducer to rotate, thereby realizing the accurate rotation switching of the gripping mechanism 8 and the rock drilling mechanism 6, without the need for operator's visual judgment, effectively improving the construction efficiency, and also playing a certain protective role, avoiding the uncontrolled swing of the boom 10 caused by the sudden failure of the reducer.

[0052] Example 2

[0053] This embodiment discloses a boom rotation switching device with rotation limit (hereinafter referred to as "boom rotation switching device"), and its implementation is basically the same as that of embodiment 1, except that:

[0054] The swivel seat 1 in this embodiment is provided with a first limit block 107. When the first end of the swivel seat 1 faces the front of the arm 10, the first limit block 107 abuts against the top of the blocking block 201. Fig. 9 shown.

[0055] That is, the boom rotation switching device in this embodiment is suitable for the application scenario where the rock drilling mechanism or the gripping mechanism is assembled on the first end of the rotating seat 1 and the second end is vacant, and can effectively realize the precise rotation positioning of the gripping mechanism or the rock drilling mechanism.

[0056] Example 3

[0057] This embodiment discloses a boom, which includes a telescopic arm, a reducer disposed at the end of the boom, and the boom rotation switching device of Embodiment 1. The output end of the reducer faces the side of the boom, the limiter in the boom rotation switching device is fixedly clamped between the reducer and the end of the boom, and the slewing seat in the boom rotation switching device is fixedly assembled on the output end of the reducer.

[0058] In the specific use process, the rock drilling mechanism and the gripping mechanism can be respectively installed on the first end and the second end of the swivel seat, so that the arm can be swiveled to switch the rock drilling mechanism and the gripping mechanism. It can not only be used for arch frame installation, but also has the functions of charging, hanging nets, anchor rods, etc., and it also has good switching accuracy.

[0059] Example 3

[0060] This embodiment discloses a trolley, which mainly includes a trolley body and the boom in Embodiment 2. The trolley in this embodiment can take into account the functions of arch frame installation, charge, net hanging, anchor rod, etc., and the gripper mechanism and the rock drilling mechanism can be quickly switched by rotating the slewing seat. The structure is simpler and the operation process is more convenient, which can effectively reduce the time and labor cost of switching equipment, and also reduce the investment of multiple equipment, save equipment use costs, greatly shorten the operation time, and improve construction efficiency.

[0061] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A boom rotation switching device with rotation limit, characterized in that: Including a swivel seat and a limiter; The swivel seat is provided with a first connection structure that can be adapted to the reducer on the boom, so that the swivel seat is rotatably connected to the side of the boom; The limiting member is provided with a second connection structure that can be connected to the arm frame, and the limiting member is provided with a blocking block that can extend to the side of the arm frame; The swivel seat is provided with a first limit block, and when the first end of the swivel seat faces the front of the arm support, the first limit block abuts against the top end of the blocking block.

2. The boom rotation switching device with rotation limit according to claim 1 is characterized in that: The swivel seat is provided with a second limit block; When the second end of the swivel seat faces the front of the arm, the second limiting block abuts against the bottom end of the blocking block.

3. The boom rotation switching device with rotation limit according to claim 2 is characterized in that: The first connection structure is a reducer assembly hole provided on the slewing seat; The first limiting block and the second limiting block are symmetrically arranged on both sides of the reducer assembly hole.

4. The boom rotation switching device with rotation limit according to claim 1, 2 or 3, characterized in that: The limiting member is a plate-shaped structure, and the second connecting structure is a bolt hole provided on the limiting member.

5. The boom rotation switching device with rotation limit according to claim 4 is characterized in that: The limiting member is provided with a hollow groove.

6. The boom rotation switching device with rotation limit according to claim 1, 2 or 3, characterized in that: The first end of the swivel seat is provided with a third connecting structure for installing a rock drilling mechanism or a gripping mechanism.

7. The boom rotation switching device with rotation limit according to claim 2 or 3, characterized in that: The second end of the swivel seat is provided with a fourth connecting structure for installing a gripping mechanism or a rock drilling mechanism.

8. The boom rotation switching device with rotation limit according to claim 2 or 3, characterized in that: The swivel seat includes a side plate and a rib plate; There are two side plates, the rib plate is fixedly connected between the two side plates, and the first limit block and the second limit block are arranged on the same side plate facing the reducer.

9. A boom, characterized in that: The arm is provided with an arm rotation switching device according to any one of claims 1 to 8; The boom includes a telescopic arm and a reducer disposed at the end of the boom, and the output end of the reducer faces the side of the boom; The limiting member is fixedly clamped between the reducer and the end of the arm, and the swivel seat is fixedly assembled on the output end of the reducer.

10. A trolley, characterized in that: The trolley is provided with the arm support as claimed in claim 9.

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