Front shovel excavating mechanism and front shovel excavator
Patent Information
- Application Number
- CN202522127767.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-09
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2035-10-09
AI Technical Summary
[0003]其中，对于正铲挖掘机而言，由于驱动铲斗的铲斗油缸的一端和驱动斗杆的斗杆油缸的一端均与动臂转动连接，导致工作时铲斗斗背与斗杆之间易发生碰撞
[0019]This utility model provides a front shovel digging mechanism, which includes a detection structure, a bucket, and a stick. The bucket and the stick are rotatably connected around a fixed axis, so that the bucket has an outward tilting limit position and an inward tilting limit position. The detection structure includes a position signal transmitter, an outward tilting limit position signal receiver, and an inward tilting limit position signal receiver. The position signal transmitter is fixedly installed on the stick. The outward tilting limit position signal receiver and the inward tilting limit position signal receiver are spaced apart around the fixed axis and are both fixed relative to the bucket. When the outward tilting limit position signal receiver triggers the position signal transmitter, the bucket is in the outward tilting limit position. When the inward tilting limit position signal receiver triggers the position signal transmitter, the bucket is in the inward tilting limit position.
Smart Images
Figure CN224769448U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of excavator technology, and in particular to a front shovel excavation mechanism and a front shovel excavator. Background Technology
[0002] Loaders, as one of the most commonly used pieces of construction machinery, are widely used in various industries due to their flexible operation, compact space, and convenient operation. Excavators are divided into front shovel excavators and backhoe excavators based on the working direction of the bucket. For front shovel excavators, digging is achieved by pushing the boom forward and swinging the bucket outward, which has the advantages of large bucket capacity and high digging efficiency.
[0003] For front shovel excavators, since both the bucket cylinder driving the bucket and the stick cylinder driving the stick are connected to the boom, collisions easily occur between the bucket back and the stick during operation. Current technologies typically address this issue by installing elastic buffer devices in the collision-prone areas of the bucket back. While this mitigates collision damage, collisions between the bucket back and the stick still exist. Furthermore, installing large mounting holes for the elastic buffer structure on the bucket back can compromise the bucket's structural strength. Utility Model Content
[0004] The purpose of this utility model is to provide a front shovel digging mechanism and a front shovel excavator to solve the above-mentioned problems existing in front shovel excavators in related technologies.
[0005] To achieve this objective, the present invention adopts the following technical solution:
[0006] A front shovel digging mechanism includes a detection structure, a bucket, and a stick, wherein the bucket and the stick are rotatably connected about a fixed axis so that the bucket has an outward tilt limit position and an inward retraction limit position;
[0007] The detection structure includes a position signal transmitter, an outward tilt limit position signal receiver, and an inward tilt limit position signal receiver. The position signal transmitter is fixedly mounted on the boom. The outward tilt limit position signal receiver and the inward tilt limit position signal receiver are spaced apart around the fixed axis and are both fixed relative to the bucket. When the outward tilt limit position signal receiver triggers the position signal transmitter, the bucket is in the outward tilt limit position. When the inward tilt limit position signal receiver triggers the position signal transmitter, the bucket is in the inward tilt limit position.
[0008] As an optional solution for the above-mentioned front shovel digging mechanism, the front shovel digging mechanism further includes a rotating shaft and a rotating disk. The bucket and the rotating disk are both fixedly sleeved on the rotating shaft, and the stick is rotatably sleeved on the rotating shaft. The central axis of the rotating shaft is the fixed axis, and the outward tilt limit position signal receiver and the inward tilt limit position signal receiver are both fixedly arranged on the outer periphery of the rotating disk.
[0009] As an alternative to the aforementioned front shovel digging mechanism, along the axial direction of the rotating shaft, the axial end face of the rotating disk abuts against one of the bucket and the stick adjacent to the rotating disk.
[0010] As an alternative to the above-mentioned front shovel digging mechanism, the front shovel digging mechanism further includes a fixing component, which is used to prevent the bucket from rotating relative to the rotating shaft about the fixed axis.
[0011] As an optional solution for the above-mentioned front shovel digging mechanism, the fixing component includes a first limiting member fixedly sleeved on the rotating shaft and a second limiting member fixedly disposed on the outer wall of the bucket, wherein the first limiting member and the second limiting member are inserted into each other.
[0012] As an alternative to the aforementioned front shovel digging mechanism, one of the first limiting member and the second limiting member is a shift fork rod, and the other is a shift fork block.
[0013] As an alternative to the above-mentioned front shovel digging mechanism, the number of fixing components is two sets, and the two sets of fixing components are located on the outer sides of both ends of the boom along the axial direction of the rotating shaft.
[0014] As an optional solution for the above-mentioned front shovel digging mechanism, the position signal transmitter is a proximity switch transmitter, and the outward turning limit position signal receiver and the inward turning limit position signal receiver are both proximity switch receivers.
[0015] As an optional solution for the above-mentioned front shovel digging mechanism, one of the bucket and the stick is provided with a first elastic buffer structure. When the bucket rotates to the outward tilt limit position, the first elastic buffer structure abuts against the other of the bucket and the stick.
[0016] One of the bucket and the stick is provided with a second elastic buffer structure. When the bucket rotates to the inward limit position, the second elastic buffer structure abuts against the other of the bucket and the stick.
[0017] Front shovel excavators, including the aforementioned front shovel excavation mechanism.
[0018] The beneficial effects of this utility model are:
[0019] This utility model provides a front shovel digging mechanism, which includes a detection structure, a bucket, and a stick. The bucket and the stick are rotatably connected around a fixed axis, so that the bucket has an outward tilting limit position and an inward tilting limit position. The detection structure includes a position signal transmitter, an outward tilting limit position signal receiver, and an inward tilting limit position signal receiver. The position signal transmitter is fixedly installed on the stick. The outward tilting limit position signal receiver and the inward tilting limit position signal receiver are spaced apart around the fixed axis and are both fixed relative to the bucket. When the outward tilting limit position signal receiver triggers the position signal transmitter, the bucket is in the outward tilting limit position. When the inward tilting limit position signal receiver triggers the position signal transmitter, the bucket is in the inward tilting limit position.
[0020] By installing a position signal transmitter on the stick, and setting outward tilt limit position signal receivers and inward tilt limit position signal receivers spaced around a fixed axis and fixed relative to the bucket, the relative positions of the bucket and stick are monitored in real time when the front shovel digging mechanism is working. When the position signal transmitter and outward tilt limit position signal receiver detect that the bucket is at the outward tilt limit position, the bucket is directly controlled to stop tilting outward and the stick to stop retracting inward, so as to avoid collision between the bucket and the stick and avoid pressure overflow and heat generation caused by the collision. When the position signal transmitter and inward tilt limit position signal receiver detect that the bucket is at the inward tilt limit position, the bucket is directly controlled to stop retracting inward and the stick to stop tilting outward, so as to avoid collision between the bucket and the stick and avoid pressure overflow and heat generation caused by the collision. Therefore, compared with existing technologies, it can effectively avoid the collision between the bucket and the stick during the operation of the front shovel digging mechanism, and effectively improve the service life and reliability of the front shovel digging mechanism; secondly, the front shovel digging mechanism has a simple structure, low production cost, and can effectively ensure the structural strength of the bucket.
[0021] This utility model also provides a front shovel excavator, including the aforementioned front shovel digging mechanism. By adopting the aforementioned front shovel digging mechanism, the collision between the bucket and the stick during the operation of the front shovel excavator can be effectively avoided, preventing pressure buildup, overflow, and overheating caused by the collision. This effectively improves the service life and reliability of the front shovel excavator and reduces its production cost. Attached Figure Description
[0022] Figure 1 This is a partial structural diagram of the front shovel digging mechanism provided in a specific embodiment of this utility model. Figure 1 ;
[0023] Figure 2 This is a partial structural diagram of the front shovel digging mechanism provided in a specific embodiment of this utility model. Figure 2 .
[0024] In the picture:
[0025] 1. Detection structure; 11. Position signal transmitter; 12. Outward tilt limit position signal receiver; 13. Inward tilt limit position signal receiver;
[0026] 2. Bucket; 3. Stick; 4. Shaft; 5. Rotary disc; 6. Fixing assembly; 61. First limiting component; 62. Second limiting component. Detailed Implementation
[0027] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0031] This utility model provides a front shovel digging mechanism, such as Figure 1 and Figure 2 As shown, the front shovel digging mechanism includes a detection structure 1, a bucket 2, and a stick 3. The bucket 2 and the stick 3 are rotatably connected around a fixed axis, giving the bucket 2 an outward tilting limit position and an inward tilting limit position. The detection structure 1 includes a position signal transmitter 11, an outward tilting limit position signal receiver 12, and an inward tilting limit position signal receiver 13. The position signal transmitter 11 is fixedly mounted on the stick 3. The outward tilting limit position signal receiver 12 and the inward tilting limit position signal receiver 13 are spaced apart around the fixed axis and are both fixed relative to the bucket 2. When the outward tilting limit position signal receiver 12 triggers the position signal transmitter 11, the bucket 2 is in the outward tilting limit position. When the inward tilting limit position signal receiver 13 triggers the position signal transmitter 11, the bucket 2 is in the inward tilting limit position.
[0032] By setting a position signal transmitter 11 on the boom 3, and setting outward tilt limit position signal receiver 12 and inward tilt limit position signal receiver 13 at intervals around a fixed axis and all fixed relative to the bucket 2, when the front shovel digging mechanism is driven to work, the position signal transmitter 11, outward tilt limit position signal receiver 12 and inward tilt limit position signal receiver 13 monitor the relative position of the bucket 2 and boom 3 in real time. When the position signal transmitter 11 and outward tilt limit position signal receiver 12 detect that the bucket 2 is at the outward tilt limit position, the bucket 2 is directly controlled to stop tilting outward and the boom 3 is stopped retracting, so as to avoid collision between the bucket 2 and the boom 3 and avoid the pressure overflow and heat generation phenomenon caused by the collision between the bucket 2 and the boom 3. When the position signal transmitter 11 and inward tilt limit position signal receiver 13 detect that the bucket 2 is at the inward tilt limit position, the bucket 2 is directly controlled to stop retracting and the boom 3 is stopped tilting outward, so as to avoid collision between the bucket 2 and the boom 3 and avoid the pressure overflow and heat generation phenomenon caused by the collision between the bucket 2 and the boom 3. Therefore, compared with the existing technology, it can effectively avoid the collision between the bucket 2 and the boom 3 when the front shovel digging mechanism is working, and effectively improve the service life and reliability of the front shovel digging mechanism; secondly, the front shovel digging mechanism has a simple structure, low production cost, and can effectively ensure the structural strength of the bucket 2.
[0033] Specifically, in this embodiment, the position signal transmitter 11 is the transmitter of a proximity switch, and the outward-facing limit position signal receiver 12 and the inward-facing limit position signal receiver 13 are both receivers of the proximity switch. It can be understood that the position signal transmitter 11 and the outward-facing limit position signal receiver 12 form one set of proximity switches, and the position signal transmitter 11 and the inward-facing limit position signal receiver 13 form another set of proximity switches. The specific structure of the proximity switch is prior art and will not be described in detail here.
[0034] Specifically, the front shovel digging mechanism also includes a boom, one end of which is rotatably connected to the stick 3, and the other end of which is rotatably connected to the vehicle body. The front shovel digging mechanism also includes a bucket cylinder, a stick cylinder, and a boom cylinder. The two ends of the bucket cylinder are rotatably connected to the bucket 2 and the boom, respectively; the two ends of the stick cylinder are rotatably connected to the stick 3 and the boom, respectively; and the two ends of the boom cylinder are rotatably connected to the boom and the vehicle body, respectively. The bucket cylinder drives the bucket 2 to rotate relative to the stick 3 around a fixed axis; the stick cylinder drives the stick 3 to rotate relative to the boom; and the boom cylinder drives the boom to rotate relative to the vehicle body. Specifically, when the stick cylinder drives the stick 3 to rotate relative to the boom, it simultaneously drives the bucket 2 to rotate around the fixed axis. Specifically, in this embodiment, taking the front shovel digging mechanism applied to a front shovel excavator as an example, the vehicle body is the body of the front shovel excavator. The specific structures and working principles of the bucket 2, stick 3, boom, bucket cylinder, stick cylinder and boom cylinder are all existing technologies, so they will not be described in detail here.
[0035] Specifically, the front shovel excavation mechanism also includes a controller. The position signal transmitter 11, the outward tilt limit position signal receiver 12, and the inward tilt limit position signal receiver 13 are all electrically connected to the controller. The controller can control the position signal transmitter 11 to transmit signals and can control the bucket cylinder, stick cylinder, and boom cylinder based on the signals received by the outward tilt limit position signal receiver 12 and the inward tilt limit position signal receiver 13. In this embodiment, the controller is the controller of a front shovel excavator.
[0036] Optionally, in this embodiment, as Figure 1 and Figure 2As shown, the front shovel digging mechanism also includes a rotating shaft 4 and a rotating disk 5. The bucket 2 and the rotating disk 5 are both fixedly sleeved on the rotating shaft 4, and the stick 3 is rotatably sleeved on the rotating shaft 4. The central axis of the rotating shaft 4 is a fixed axis. The outward tilting limit position signal receiver 12 and the inward tilting limit position signal receiver 13 are both fixedly arranged on the outer periphery of the rotating disk 5. This arrangement allows the outward tilting limit position signal receiver 12 and the inward tilting limit position signal receiver 13 to be spaced apart around the fixed axis and fixed relative to the bucket 2. Furthermore, this arrangement allows the outward tilting limit position signal receiver 12 and the inward tilting limit position signal receiver 13 to rotate around the fixed axis and face the position signal transmitter 11, thereby further improving the accuracy and reliability of monitoring the relative position of the bucket 2 and the stick 3 through the position signal transmitter 11, the outward tilting limit position signal receiver 12, and the inward tilting limit position signal receiver 13.
[0037] In other embodiments, the bucket 2 and the rotating disk 5 may both be rotatably mounted on the rotating shaft 4, with the bucket 2 and the rotating disk 5 relatively fixed. The stick 3 is fixedly mounted on the rotating shaft 4, and the outward tilting limit position signal receiver 12 and the inward tilting limit position signal receiver 13 are both fixedly mounted on the outer periphery of the rotating disk 5. Alternatively, the outward tilting limit position signal receiver 12 and the inward tilting limit position signal receiver 13 can be spaced apart around a fixed axis and both fixed relative to the bucket 2. It is understood that the bucket 2 and the rotating disk 5 rotate synchronously around the central axis of the rotating shaft 4.
[0038] In other embodiments, both the outward tilt limit position signal receiver 12 and the inward tilt limit position signal receiver 13 can be directly fixedly installed on the bucket 2.
[0039] Further optional, such as Figure 1 and Figure 2 As shown, along the axial direction of the rotating shaft 4, the axial end face of the rotating disk 5 abuts against the bucket 2 and the stick 3 adjacent to the rotating disk 5. This allows the rotating disk 5 to define the axial position of the bucket 2 and the stick 3 along the rotating shaft 4, and its integrated function simplifies the number of parts.
[0040] Specifically, in this embodiment, as Figure 1 and Figure 2 As shown, in the exemplary configuration, along the axial direction of the shaft 4, one end of the stick 3 rotatably connected to the shaft 4 is located outside the bucket 2. Therefore, along the axial direction of the shaft 4, one axial end face of the rotating disk 5 abuts against the stick 3. In other embodiments, it is also possible to configure the stick 3 rotatably connected to the shaft 4 along the axial direction of the shaft 4, with one end located inside the bucket 2. In this case, along the axial direction of the shaft 4, one axial end face of the rotating disk 5 abuts against the bucket 2.
[0041] Optionally, such as Figure 1 and Figure 2As shown, the front shovel digging mechanism also includes a fixing component 6, which is used to prevent the bucket 2 from rotating relative to the rotating shaft 4 around a fixed axis. This can improve the working performance of the bucket 2 and further improve the accuracy and reliability of monitoring the relative position of the bucket 2 and the stick 3 through the position signal transmitter 11, the outward tilt limit position signal receiver 12, and the inward tilt limit position signal receiver 13.
[0042] Further optional, such as Figure 1 and Figure 2 As shown, the fixing assembly 6 includes a first limiting member 61 fixedly sleeved on the rotating shaft 4 and a second limiting member 62 fixedly disposed on the outer wall of the bucket 2. The first limiting member 61 and the second limiting member 62 are inserted into each other to prevent the bucket 2 from rotating relative to the rotating shaft 4 around the fixed axis.
[0043] Further optional, such as Figure 1 and Figure 2 As shown, one of the first limiting member 61 and the second limiting member 62 is a shift fork rod, and the other is a shift fork block. The shift fork rod and the shift fork block are interlocked to prevent the bucket 2 from rotating relative to the rotating shaft 4 around the fixed axis; secondly, the structures of the shift fork rod and the shift fork block are existing structures, which can effectively reduce design and production costs. In this embodiment, as... Figure 1 and Figure 2 As shown, the first limiting member 61 is configured as a shift fork lever, and the second limiting member 62 is configured as a shift fork block.
[0044] In other embodiments, the first limiting member 61 and the second limiting member 62 may be fixedly connected. The fixed connection can be achieved through bolts and nuts, threaded connections, or welding. This also prevents the bucket 2 from rotating relative to the rotating shaft 4 around the fixed axis.
[0045] In other embodiments, the bucket 2 can also be directly welded to the rotating shaft 4 after it is fitted onto the shaft 4. This also prevents the bucket 2 from rotating relative to the rotating shaft 4 around the fixed axis. It can be understood that the limiting structure in this case is the weld at the fitting position of the bucket 2 and the rotating shaft 4.
[0046] Alternatively, in this embodiment, the number of fixing components 6 is two sets, and the two sets of fixing components 6 are located on the outer sides of both ends of the boom 3 along the axial direction of the rotating shaft 4. Setting the number of fixing components 6 to two sets can further improve the effect of preventing the bucket 2 from rotating relative to the rotating shaft 4 around the fixed axis. Setting the two sets of fixing components 6 on the outer sides of both ends of the bucket 2 along the axial direction of the rotating shaft 4 reduces the risk of damage or even destruction of the fixing components 6 during the scooping process of the bucket 2.
[0047] Optionally, one of the bucket 2 and the stick 3 is provided with a first elastic buffer structure. When the bucket 2 rotates to the outward tilt limit position, the first elastic buffer structure abuts against the other of the bucket 2 and the stick 3. If the bucket 2 exceeds the outward tilt limit position due to external forces or obstacles, the first elastic buffer structure can buffer the impact, effectively reducing the degree of damage to the bucket 2 and / or the stick 3.
[0048] Optionally, a second elastic buffer structure is provided on one of the bucket 2 and the stick 3. When the bucket 2 rotates to the inward limit position, the second elastic buffer structure abuts against the other of the bucket 2 and the stick 3. If the bucket 2 exceeds the inward limit position due to external forces or obstacles, the second elastic buffer structure can buffer the impact and effectively reduce the degree of damage to the bucket 2 and / or the stick 3.
[0049] Preferably, one of the bucket 2 and the stick 3 has a first elastic buffer structure, and one of the bucket 2 and the stick 3 has a second elastic buffer structure.
[0050] Optionally, the first elastic buffer structure is formed by a structure with elastic buffering capacity, such as a spring and / or a rubber pad. The second elastic buffer structure is formed by a structure with elastic buffering capacity, such as a spring and / or a rubber pad. Furthermore, if the first elastic buffer structure and / or the second elastic buffer structure are provided on the bucket 2, it is preferable to connect them to the bucket 2 by welding to avoid reducing the structural strength of the bucket 2 by opening holes, etc.
[0051] This utility model also provides a front shovel excavator, including the aforementioned front shovel digging mechanism. By adopting the aforementioned front shovel digging mechanism, the collision between the bucket 2 and the stick 3 during the operation of the front shovel excavator can be effectively avoided, preventing pressure buildup, overflow, and overheating caused by the collision between the bucket 2 and the stick 3. This effectively improves the service life and reliability of the front shovel excavator and reduces its production cost.
[0052] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A front shovel digging mechanism, characterized in that, It includes a detection structure (1), a bucket (2) and a stick (3), wherein the bucket (2) and the stick (3) are rotatably connected around a fixed axis so that the bucket (2) has an outward limit position and an inward limit position; The detection structure (1) includes a position signal transmitter (11), an outward tilt limit position signal receiver (12), and an inward tilt limit position signal receiver (13). The position signal transmitter (11) is fixedly mounted on the boom (3). The outward tilt limit position signal receiver (12) and the inward tilt limit position signal receiver (13) are spaced apart around the fixed axis and are both fixed relative to the bucket (2). When the outward tilt limit position signal receiver (12) triggers the position signal transmitter (11), the bucket (2) is in the outward tilt limit position. When the inward tilt limit position signal receiver (13) triggers the position signal transmitter (11), the bucket (2) is in the inward tilt limit position.
2. The front shovel digging mechanism according to claim 1, characterized in that, The front shovel digging mechanism also includes a rotating shaft (4) and a rotating disk (5). The bucket (2) and the rotating disk (5) are both fixedly sleeved on the rotating shaft (4). The stick (3) is rotatably sleeved on the rotating shaft (4). The central axis of the rotating shaft (4) is the fixed axis. The outward limit position signal receiver (12) and the inward limit position signal receiver (13) are both fixedly arranged on the outer periphery of the rotating disk (5).
3. The front shovel digging mechanism according to claim 2, characterized in that, Along the axial direction of the rotating shaft (4), the axial end face of the rotating disk (5) abuts against the bucket (2) and the stick (3) adjacent to the rotating disk (5).
4. The front shovel digging mechanism according to claim 2, characterized in that, The front shovel digging mechanism also includes a fixing component (6) for preventing the bucket (2) from rotating relative to the rotating shaft (4) about the fixed axis.
5. The front shovel digging mechanism according to claim 4, characterized in that, The fixing component (6) includes a first limiting member (61) fixedly sleeved on the rotating shaft (4) and a second limiting member (62) fixedly disposed on the outer wall of the bucket (2), wherein the first limiting member (61) and the second limiting member (62) are inserted into each other.
6. The front shovel digging mechanism according to claim 5, characterized in that, One of the first limiting member (61) and the second limiting member (62) is a shift fork lever, and the other is a shift fork block.
7. The front shovel digging mechanism according to any one of claims 4-6, characterized in that, The number of the fixing components (6) is two sets, and the two sets of fixing components (6) are located on the outer sides of both ends of the stick (3) along the axial direction of the rotating shaft (4).
8. The front shovel digging mechanism according to any one of claims 1-6, characterized in that, The position signal transmitter (11) is a transmitter of a proximity switch, and the outward limit position signal receiver (12) and the inward limit position signal receiver (13) are both receivers of a proximity switch.
9. The front shovel digging mechanism according to any one of claims 1-6, characterized in that, One of the bucket (2) and the stick (3) is provided with a first elastic buffer structure. When the bucket (2) rotates to the outward limit position, the first elastic buffer structure abuts against the other of the bucket (2) and the stick (3). One of the bucket (2) and the stick (3) is provided with an upper second elastic buffer structure. When the bucket (2) rotates to the inward limit position, the second elastic buffer structure abuts against the other of the bucket (2) and the stick (3).
10. A front shovel excavator, characterized in that, Includes the front shovel excavation mechanism as described in any one of claims 1-9.