A rear dump loader

Abstract

The utility model provides a rear-dump loader, which relates to the technical field of tunnel construction. The rear-dump loader includes: a mobile frame; a mounting seat, and mounting seats are arranged on opposite sides of the mobile frame; a lifting arm, one end of which is hinged to the mounting seat; a first connecting rod mechanism, one end of which is hinged to the mounting seat, and the other end is hinged to the lifting arm; a first driving member, one end of which is hinged to the mobile frame, and the other end is hinged to the first connecting rod mechanism; a flip arm, one end of which is hinged to the other end of the lifting arm; a second connecting rod mechanism, one end of which is hinged to one end of the lifting arm close to the flip arm, and the other end is hinged to the flip arm; a second driving member, one end of which is hinged to the lifting arm, and the other end is hinged to the second connecting rod mechanism. The utility model designs the loader as a rear-dump type, which can effectively improve the working efficiency in the tunnel and reduce the construction cost.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to a rear-flip loader. Background Art

[0002] In the construction of railway and highway tunnels, a large number of auxiliary pilot tunnels and single-track tunnels are encountered. The excavation section is less than 6 meters × 6 meters. The space does not meet the loading and operation space of loaders and dump trucks on the market, which makes construction and loading difficult. It is necessary to add additional shunting tunnel projects. The use of equipment such as scrapers is not adaptable enough. It is necessary to add large rock crushing processes to the original process, which is inefficient. At present, the tunnel main tunnel and auxiliary pilot tunnels include inclined shafts, horizontal tunnels, and horizontal guides. The ratio of the project volume to the main tunnel length is close to 1:1, and the construction demand is huge. At present, construction units are forced to use small loaders and small agricultural transport vehicles to cooperate with operations, or the muck trucks are parked at the shunting tunnels, and the loaders are transported back and forth to the shunting tunnels. The construction efficiency is low, the construction progress is slow, and the cost is high. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a rear-flip loader, which is designed to be rear-flip and can be arranged longitudinally along the tunnel with a dump truck, which can effectively improve the working efficiency in the tunnel and reduce the construction cost.

[0004] The technical solution adopted by the utility model is:

[0005] A rear dump loader, comprising:

[0006] Mobile frame;

[0007] A mounting seat, wherein the mounting seats are disposed on opposite sides of the movable frame;

[0008] A lifting arm, one end of which is hinged to the mounting seat;

[0009] A first connecting rod mechanism, one end of which is hinged to the mounting seat, and the other end of which is hinged to the lifting arm;

[0010] A first driving member, one end of which is hinged to the moving frame, and the other end of which is hinged to the first connecting rod mechanism;

[0011] A tilting arm, one end of which is hinged to the other end of the lifting arm;

[0012] A second connecting rod mechanism, one end of which is hinged to an end of the lifting arm close to the flip arm, and the other end of which is hinged to the flip arm;

[0013] A second driving member, one end of which is hinged to the lifting arm, and the other end of which is hinged to the second connecting rod mechanism;

[0014] A bucket is hinged to the other end of the flip arm;

[0015] A turning driving member has one end hinged to the turning arm and the other end hinged to the bucket.

[0016] Optionally, the mounting base comprises:

[0017] Two mounting plates, one of which is connected to the moving frame, the orthographic projection of the mounting plate is a right triangle, and after installation, the hypotenuse is arranged toward the moving direction of the moving frame;

[0018] A mounting member, mounted between the two mounting plates;

[0019] Among them, after the mounting part is installed between the two mounting plates, mounting grooves are formed at the corners of the two mounting plates, one end of the lifting arm is hinged in the mounting groove located above, and one end of the first connecting rod mechanism is hinged in the mounting groove located below.

[0020] Optionally, a connecting rod is provided at one end of the lifting arm close to the mounting seat, and one end of the second driving member is hinged to the connecting rod.

[0021] Optionally, the first linkage mechanism comprises:

[0022] A first connecting rod, one end of which is hinged to the mounting seat;

[0023] A second connecting rod, one end of which is hinged to the other end of the first connecting rod, and the other end of the second connecting rod is hinged to the lifting arm;

[0024] The other end of the first driving member is hinged to the hinge of the first connecting rod and the second connecting rod, and the first connecting rod, the second connecting rod, the mounting seat and the lifting arm are connected to form a four-bar linkage.

[0025] Optionally, the flip arm is a telescopic arm, and one end of the flip driving member is hinged to a fixed end of the flip arm.

[0026] Optionally, the second linkage mechanism comprises:

[0027] A third connecting rod, one end of which is hinged to an end of the lifting arm close to the flip arm;

[0028] a fourth connecting rod, one end of which is hinged to the other end of the third connecting rod, and the other end of the fourth connecting rod is hinged to an end of the flip arm close to the lifting arm;

[0029] Among them, the other end of the second driving member is hinged to the hinge of the third connecting rod and the fourth connecting rod; the third connecting rod, the fourth connecting rod, the lifting arm and the flip arm are connected to form another four-bar linkage.

[0030] Optionally, an end of the shovel opening of the bucket close to the flip arm is smaller than an end of the bucket away from the flip arm.

[0031] Compared with the prior art, the beneficial effects of the utility model are:

[0032] 1. Designing the loader to be rear-flip can effectively improve the working efficiency in the tunnel and reduce construction costs.

[0033] 2. During the movement of the lifting arm and the tilting arm, the bucket is adjusted by the tilting drive member so that the bucket always remains horizontal. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present application 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 present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 It is a schematic diagram of the three-dimensional structure of a rear dump loader.

[0036] Figure 2 The diagram is a schematic diagram of the structure of a rear dump loader for shoveling gravel.

[0037] Figure 3 Schematic diagram of the structure of a rear dump loader dumping gravel.

[0038] Figure 4 It is a three-dimensional structural schematic diagram of the rear dump loader when in use.

[0039] Figure 5 Schematic diagram of the bucket structure.

[0040] Reference numerals:

[0041] 1. Mobile frame;

[0042] 2. Mounting seat; 21. Mounting plate; 22. Mounting piece; 23. Mounting slot;

[0043] 3. Lifting arm; 31. Connecting rod;

[0044] 4. first connecting rod mechanism; 41. first connecting rod; 42. second connecting rod;

[0045] 5. A first driving member;

[0046] 6. Flip arm;

[0047] 7. second connecting rod mechanism; 71. third connecting rod; 72. fourth connecting rod;

[0048] 8. A second driving member;

[0049] 9. Bucket;

[0050] 10. Turn over the drive member. DETAILED DESCRIPTION

[0051] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0052] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0053] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] In the present utility model, unless otherwise clearly stipulated and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0055] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0056] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0057] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, an embodiment of the utility model provides a rear dump loader, comprising: a mobile frame 1, a mounting seat 2, a lifting arm 3, a first connecting rod mechanism 4, a first driving member 5, a flip arm 6, a second connecting rod mechanism 7, a second driving member 8, a bucket 9 and a flip driving member 10. Mounting seats 2 are provided on opposite sides of the mobile frame 1. One end of the lifting arm 3 is hinged to the top of the mounting seat 2. One end of the first connecting rod mechanism 4 is hinged to the bottom of the mounting seat 2, and the other end is hinged to the lifting arm 3. One end of the first driving member 5 is hinged to the mobile frame 1, and the other end is hinged to the first connecting rod mechanism 4. One end of the flip arm 6 is hinged to the other end of the lifting arm 3. One end of the second connecting rod mechanism 7 is hinged to one end of the lifting arm 3 close to the flip arm 6, and the other end is hinged to the flip arm 6. One end of the second driving member 8 is hinged to the lifting arm 3, and the other end is hinged to the second connecting rod mechanism 7. The bucket 9 is hinged to the other end of the flip arm 6. One end of the tilting driving member 10 is hinged to the tilting arm 6 , and the other end is hinged to the bucket 9 .

[0058] First, the bucket 9 is flat on the ground, the whole vehicle moves to load, and then the flip arm 6 is rotated to lift the bucket 6. The flip arm 6 rotates greatly so that the bucket 9 turns over the driver's cab, but the height does not exceed the tunnel top. Then the flip arm 6 continues to rotate, and after it is almost close to the lifting arm 3, the lifting arm 3 is flipped. After the lifting arm 3 is flipped more than 90 degrees, the lifting arm 3 rotates while the flip arm 6 slowly rotates back until it reaches the unloading position. During this process, the bucket always remains horizontal.

[0059] More specifically, when the bucket 9 is loaded with gravel, the bucket 9 is kept in a horizontal position by the flipping driving member 10 to prevent the gravel from falling out during the flipping process. During the lifting process, the first driving member 5 drives the first connecting rod mechanism 4 to rotate around its hinge, and the bucket 9 is driven to rise during the rotation process. After rising to a certain height, the second driving member 8 drives the second connecting rod mechanism 7 to move, so that the bucket 9 is flipped to the rear end of the mobile frame 1. Finally, the flipping driving member 10 drives the bucket 9 to flip, so that the gravel in the bucket 9 is poured into the slag transport vehicle.

[0060] In one embodiment, the mounting seat 2 includes: two mounting plates 21 and mounting parts 22. One of the mounting plates 21 is connected to the moving frame 1. The positive projection of the mounting plate 21 is a right triangle, and after installation, the hypotenuse of the mounting plate 21 is set toward the travel direction of the moving frame 1. The mounting part 22 is installed between the two mounting plates 21, and after installation, a mounting groove 23 is formed at the corner of the two mounting plates 21. The two mounting grooves 23 are distributed in a high and low manner, and the lifting arm 3 is hinged in the upper large mounting groove 23, and one end of the first connecting rod mechanism 4 is hinged in the lower mounting groove 23.

[0061] In order to prevent the mounting base 2 from interfering with the lifting arm 3 during the turning process, the mounting plate 21 is set to a right triangle structure. The lifting arm 3 and the first connecting rod mechanism 4 are installed at different heights, so that the lifting arm 3 has a larger rotation angle.

[0062] In one embodiment, if Figure 1 , Figure 2 and Figure 3 As shown, in order to facilitate the installation of the second driving member 8 , a connecting rod 31 is provided at one end of the lifting arm 3 close to the mounting base 2 , and one end of the second driving member 8 is hinged to the connecting rod 31 .

[0063] In one embodiment, if Figure 1 , Figure 2 and Figure 3 As shown, the first link mechanism 4 includes: a first link 41 and a second link 42. One end of the first link 41 is hinged to the mounting base 2. One end of the second link 42 is hinged to the other end of the first link 41, and the other end of the second link 42 is hinged to the lifting arm 3. Among them, the other end of the first driving member 5 is hinged to the hinge of the first link 41 and the second link 42, and the first link 41, the second link 42, the mounting base 2 and the lifting arm 3 are connected to form a four-link mechanism.

[0064] When in use, the first connecting rod 41, the second connecting rod 42, the mounting seat 2 and the lifting arm 3 are connected to form a four-bar linkage. When in use, the four-bar linkage can enable the lifting arm 3 to have a larger turning angle during the rotation process, making it easier to rotate the bucket 9 to the tail of the mobile frame 1.

[0065] In one embodiment, if Figure 1 , Figure 2 and Figure 3 As shown, in order to avoid the arm being insufficiently long during flipping, the flip arm 6 is a telescopic arm, and one end of the flip driving member 10 is hinged to the fixed end of the flip arm 6 .

[0066] In one embodiment, if Figure 1 , Figure 2 and Figure 3 As shown, the second link mechanism 7 includes: a third link 71 and a fourth link 72. One end of the third link 71 is hinged to one end of the lifting arm 3 close to the flip arm 6. One end of the fourth link 72 is hinged to the other end of the third link 71, and the other end of the fourth link 72 is hinged to one end of the flip arm 6 close to the lifting arm 3. The other end of the second driving member 8 is hinged to the hinge of the third link 71 and the fourth link 72; the third link 71, the fourth link 72, the lifting arm 3 and the flip arm 6 are connected to form another four-link mechanism.

[0067] When in use, the third connecting rod 71, the fourth connecting rod 72, the lifting arm 3 and the flip arm 6 are connected to form another four-bar mechanism. When in use, the four-bar mechanism can enable the flip arm 6 to have a larger turning angle during the flipping process, making it easier to pour the crushed stones into the slag truck when the bucket 9 is flipped.

[0068] In one embodiment, if Figure 5 As shown, the end of the shovel mouth of the bucket 9 close to the flip arm 6 is smaller than the end of the bucket 9 away from the flip arm 6.

[0069] When in use, the front end of the bucket 9 is larger than the rear end to facilitate the bucket 9 to shovel materials, and the rear end is smaller to facilitate pouring the slag in the bucket 9 into the slag transport vehicle.

[0070] It should be noted that, in the specific implementation process, the width of the slag truck's compartment is 2.3 meters, so the size of the bucket needs to be smaller than the width of the compartment to accommodate the deviation caused by the non-overlapping center positions of the two vehicles and to prevent the slag from falling outside the compartment.

[0071] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A rear dump loader, characterized in that: include: Mobile frame; A mounting seat, wherein the mounting seats are disposed on opposite sides of the movable frame; A lifting arm, one end of which is hinged to the mounting seat; A first connecting rod mechanism, one end of which is hinged to the mounting seat, and the other end of which is hinged to the lifting arm; A first driving member, one end of which is hinged to the moving frame, and the other end of which is hinged to the first connecting rod mechanism; A tilting arm, one end of which is hinged to the other end of the lifting arm; A second connecting rod mechanism, one end of which is hinged to an end of the lifting arm close to the flip arm, and the other end of which is hinged to the flip arm; A second driving member, one end of which is hinged to the lifting arm, and the other end of which is hinged to the second connecting rod mechanism; A bucket is hinged to the other end of the flip arm; A turning driving member has one end hinged to the turning arm and the other end hinged to the bucket.

2. The rear dump loader according to claim 1, characterized in that: The mounting seat comprises: Two mounting plates, one of which is connected to the moving frame, the orthographic projection of the mounting plate is a right triangle, and after installation, the hypotenuse is arranged toward the moving direction of the moving frame; A mounting member, mounted between the two mounting plates; Among them, after the mounting member is installed between the two mounting plates, mounting grooves are formed at the corners of the two mounting plates, one end of the lifting arm is hinged in the mounting groove located above, and one end of the first connecting rod mechanism is hinged in the mounting groove located below.

3. The rear dump loader according to claim 1, characterized in that: A connecting rod is arranged at one end of the lifting arm close to the mounting seat, and one end of the second driving member is hinged to the connecting rod.

4. The rear dump loader according to claim 1, characterized in that: The first linkage mechanism comprises: A first connecting rod, one end of which is hinged to the mounting seat; A second connecting rod, one end of which is hinged to the other end of the first connecting rod, and the other end of the second connecting rod is hinged to the lifting arm; The other end of the first driving member is hinged to the hinge of the first connecting rod and the second connecting rod, and the first connecting rod, the second connecting rod, the mounting seat and the lifting arm are connected to form a four-bar linkage.

5. The rear dump loader according to claim 1, characterized in that: The flip arm is a telescopic arm, and one end of the flip driving member is hinged to the fixed end of the flip arm.

6. The rear dump loader according to claim 1, characterized in that: The second link mechanism comprises: A third connecting rod, one end of which is hinged to an end of the lifting arm close to the flip arm; a fourth connecting rod, one end of which is hinged to the other end of the third connecting rod, and the other end of the fourth connecting rod is hinged to an end of the flip arm close to the lifting arm; Among them, the other end of the second driving member is hinged to the hinge of the third connecting rod and the fourth connecting rod; the third connecting rod, the fourth connecting rod, the lifting arm and the flip arm are connected to form another four-bar linkage.

7. The rear dump loader according to claim 1, characterized in that: An end of the shovel opening of the bucket close to the flip arm is smaller than an end of the bucket away from the flip arm.

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