A gripper assembly and anchor trolley

Abstract

The utility model discloses a gripper assembly and an anchor trolley, wherein the gripper assembly includes a base, a support and a gripper; the first end of the support is hinged to the base, and the gripper is arranged at the second end of the support; the support has a first state and a second state: in the first state, the gripper on the support faces a first direction; in the second state, the gripper on the support faces a second direction; a mechanical reset mechanism is provided between the base and the support, so that the support has a tendency to remain in the first state. The utility model relates to the technical field of engineering equipment, and by providing a mechanical reset mechanism between the base and the support, the support has a tendency to remain in the first state, so that the gripper can automatically reset after changing the state, and the whole process is driven by a mechanical structure, no additional power is required, and the structure is simple, which effectively reduces the manufacturing cost of the gripper assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering equipment, in particular to a gripper assembly and an anchor trolley. Background Art

[0002] In tunnel or mine support projects, the anchor trolley uses two sets of grippers to install anchors. First, the gripper takes the anchor from the anchor library and drives it into the preset hole through a hydraulic rock drill. In this process, the gripper not only needs to firmly grasp the anchor, but also assists in delivering it into the hole. However, there are some defects in the current commonly used gripper design: for example, the anchor is easy to fall off, the gripper may accidentally insert into the anchor pipe seam, and misoperation may cause the anchor to hit the gripper and become misaligned with the slide bolt structure. These problems seriously affect construction efficiency. In addition, conventional grippers are usually driven by cylinders to achieve displacement to avoid interference with the rock drill, and the return position also relies on cylinders, which not only makes the structure complicated, but also has high costs. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the prior art, the utility model provides a gripper assembly and an anchor trolley, which can not only automatically reset through a mechanical structure without the need for additional power, but also have a simple structure and low manufacturing cost.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a gripper assembly, comprising a base, a support and a gripper;

[0005] The first end of the support is hinged to the base, and the gripper is arranged at the second end of the support;

[0006] The support has a first state and a second state:

[0007] In the first state, the gripper on the support faces a first direction;

[0008] In the second state, the gripper on the support faces a second direction;

[0009] A mechanical reset mechanism is provided between the base and the support so that the support has a tendency to remain in the first state.

[0010] In one embodiment, the first direction is a direction toward the top of the base, and the second direction is a direction toward the side of the base.

[0011] In one embodiment, the mechanical reset mechanism is a tension spring, one end of the tension spring is connected to the base, and the other end of the tension spring is connected to the support.

[0012] In one embodiment, the first end of the support is hinged to the base via a pin, and the mechanical reset mechanism is a coil spring disposed on the pin.

[0013] In one embodiment, the gripper includes a compression spring and two clamping jaws;

[0014] The clamping jaws are hinged at the second end of the support, and the two clamping jaws are symmetrical to each other along the symmetry axis;

[0015] The first ends of the two clamping jaws are connected via the compression spring, and the second ends of the two clamping jaws constitute the grasping end of the gripper.

[0016] In one embodiment, the gripper further comprises a limit plate, the limit plate is fixedly arranged at the second end of the support, and the clamping claw is hinged between the limit plate and the support;

[0017] The two sides of the limit plate are provided with baffles corresponding to the two clamping jaws, and the baffles are located on the rotation path of the clamping jaws on the corresponding side to limit the minimum opening size of the gripping end of the gripper.

[0018] In one embodiment, a groove is provided on the side of the clamping jaw facing the axis of symmetry, and the grooves on the two clamping jaws constitute a grasping groove.

[0019] In one embodiment, the second end of the clamping jaw extends in a direction away from the axis of symmetry.

[0020] In one embodiment, the second end of the clamping jaw is a rounded structure.

[0021] In order to achieve the above-mentioned purpose, the utility model also provides an anchor trolley, and the propulsion beam of the anchor trolley is provided with the above-mentioned gripper assembly.

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

[0023] 1. The gripper assembly of the utility model provides a mechanical reset mechanism between the base and the support, so that the support has a tendency to remain in the first state, so that the gripper can automatically reset after changing the state, and the whole process is driven by the mechanical structure without additional power. At the same time, the structure is simple, which effectively reduces the manufacturing cost of the gripper assembly;

[0024] 2. In the preferred embodiment of the utility model, by setting the second end of the clamping claw as a rounded structure, the grabbing end of the gripper can be effectively prevented from getting stuck in the anchor pipe seam, thereby improving the construction efficiency;

[0025] 3. In the preferred embodiment of the utility model, the second end of the clamping claw is designed to extend in a direction away from the axis of symmetry, so that the grasping end of the gripper is an overall flared structure, thereby making it easier to grasp the anchor rod;

[0026] 4. In the preferred embodiment of the present invention, a limit plate is provided, and baffles are provided on both sides of the limit plate, thereby limiting the minimum opening size of the gripping end of the gripper. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 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.

[0028] Figure 1 It is an axonometric diagram of the gripper assembly in the embodiment of the utility model when the support is in the first state;

[0029] Figure 2 It is a front view of the gripper assembly in the embodiment of the utility model when the support is in the first state;

[0030] Figure 3 It is an axonometric diagram of the gripper assembly in the embodiment of the utility model when the support is in the second state;

[0031] Figure 4 It is a front view of the gripper assembly in the embodiment of the utility model when the support is in the second state;

[0032] Figure 5 It is a front view of the gripper assembly in the embodiment of the utility model when the mechanical reset mechanism is a coil spring;

[0033] Figure 6 It is a partial front view of the gripper in the embodiment of the utility model;

[0034] Figure 7 It is a partial axonometric view of the gripper in the embodiment of the utility model.

[0035] Reference numerals: base 1 , support 2 , gripper 3 , compression spring 301 , clamping claw 302 , grabbing groove 303 , limiting plate 304 , baffle 3041 , pin 4 , mechanical reset mechanism 5 , baffle rod 501 , anchor rod 6 .

[0036] 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

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] Example 1

[0043] like Figures 1 to 4The present embodiment shows a gripper assembly disclosed in the present invention, which mainly includes a base 1, a support 2 and a gripper 3. The first end of the support 2 is hinged to the base 1 through a pin 4, and the gripper 3 is arranged at the second end of the support 2 for performing a gripping action. The support 2 has a first state and a second state. In the first state, the gripper 3 on the support 2 faces the first direction, and in the second state, the gripper 3 on the support 2 faces the second direction. A mechanical reset mechanism 5 is provided between the base 1 and the support 2, so that the support 2 has a tendency to remain in the first state, that is, the support 2 can automatically recover from the second state to the first state under the action of the mechanical reset mechanism 5. The mechanical reset mechanism 5 is a purely mechanical structure. By providing the mechanical reset mechanism 5 between the base 1 and the support 2, the support 2 has a tendency to remain in the first state, so that the support 2 can automatically reset after changing the state, and the entire process is driven by the mechanical structure without the need for additional power. At the same time, the structure is simple, which effectively reduces the manufacturing cost of the gripper assembly.

[0044] In the specific implementation process, the first direction is the direction toward the top of the base 1, and the second direction is the direction toward the side of the base 1. Take the application of the gripper assembly on the anchor trolley as an example. At this time, the base 1 is fixedly connected or slidably connected to the propulsion beam of the anchor trolley. The first direction is the height direction of the propulsion beam, and the second direction is the length direction of the propulsion beam or other directions other than the height. Initially, the support 2 is in the first state, the gripper 3 grasps the anchor, and the support 2 is located on the forward path of the rock drill on the propulsion beam. As the rock drill advances until it hits the support 2, the support 2 rotates around the pin 4 and changes from the first state to the second state. At the same time, the gripper 3 is separated from the anchor. At this time, the support 2 cannot be restored to the first state under the interference of the rock drill. When the anchor is driven into the anchor hole, the rock drill retreats. At this time, the support 2 can automatically restore to the first state under the action of the mechanical reset mechanism 5. This process does not require additional power to achieve automatic reset of the gripper assembly.

[0045] In the specific implementation process, the mechanical reset mechanism 5 is a tension spring, one end of which is connected to the base 1, and the other end is connected to the support 2. When the support 2 is in the first state, the tension spring is in a free state; when the support 2 is in the second state, the tension spring is in a stretched state, so when the support 2 is in the second state and is not interfered, the support 2 can be automatically reset under the action of the tension spring.

[0046] It is worth noting that when the support 2 is in the second state, the connection point of the tension spring must be kept below the hinge dead point of the pin 4, that is, the axis of the pin 4 is located below the tension spring, so that the support 2 can be automatically reset smoothly. In the specific application process, a blocking block can be set on the base 1, the support 2 or the outside, so that the blocking block is located on the rotation path of the support 2 to prevent the axis of the pin 4 from being located above the tension spring when the support 2 rotates.

[0047] It is worth noting that the mechanical reset mechanism 5 is not limited to the use of a tension spring, and a coil spring can also be provided on the pin 4 as the mechanical reset mechanism 5, that is, Figure 5 As shown, the coil spring is sleeved on the pin shaft 4, and the base 1 and the support 2 are respectively provided with a blocking rod 501 that abuts against both ends of the coil spring. When the support 2 changes from the first state to the second state, the coil spring is gradually rotated and compressed. Therefore, when the support 2 is in the second state and is not blocked by interference, it can automatically return to the first state under the action of the coil spring.

[0048] refer to Figure 6 The gripper 3 includes a compression spring 301 and two clamping jaws 302. The clamping jaws 302 are hinged at the second end of the support 2, and the two clamping jaws 302 are symmetrical to each other along the symmetry axis. The first ends of the two clamping jaws 302 are connected by the compression spring 301, and the second ends of the two clamping jaws 302 constitute the grasping end of the gripper 3. A groove is provided on the side of the clamping jaws 302 facing the symmetry axis, and the grooves on the two clamping jaws 302 constitute the grasping groove 303. Taking the grasping of the anchor rod 6 as an example, during the grasping process, the grasping end of the gripper 3 is gradually approached to the anchor rod 6 or the anchor rod 6 is gradually approached to the grasping end of the gripper 3. Under the pressure of the anchor rod 6, the second ends of the two clamping jaws 302 are separated from each other, and the compression spring 301 is compressed. When the anchor rod 6 is inserted into the grasping groove 303, the compression spring 301 rebounds, and the anchor rod 6 can be grasped.

[0049] refer to Figure 7 As a preferred embodiment, the gripper 3 further includes a limit plate 304, which is fixedly connected to the second end of the support 2 by bolts, and the clamping jaws 302 are hinged between the limit plate 304 and the support 2. The limit plate 304 has baffles 3041 on both sides corresponding to the two clamping jaws 302, and the baffles 3041 are located on the rotation path of the corresponding side clamping jaws 302 to limit the minimum opening size of the gripping end of the gripper 3, and the maximum opening size of the gripping end of the gripper 3 can be directly achieved by the compression spring 301.

[0050] As a preferred embodiment, the second end of the clamping jaw 302 extends in a direction away from the axis of symmetry, so that the gripping end of the gripper 3 is an overall flared structure, thereby making it easier to grip the anchor rod.

[0051] As a preferred embodiment, the second end of the clamping claw 302 is a rounded structure, which can effectively prevent the grasping end of the gripper 3 from getting stuck in the anchor pipe seam, thereby improving construction efficiency.

[0052] Example 2

[0053] This embodiment discloses an anchor trolley, and the propulsion beam of the anchor trolley is provided with the gripper assembly of embodiment 1. Specifically, the base 1 is fixedly connected or slidably connected to the propulsion beam, and when the support 2 is in the first state, the gripping end of the gripper 3 on the gripper assembly is at the propulsion station of the propulsion beam, and when the support is in the second state, the gripping end of the gripper 3 on the gripper assembly is located at the side of the propulsion beam to avoid interference with the movement of the rock drill on the propulsion beam.

[0054] The working process of the anchor trolley in this embodiment is as follows:

[0055] First, the anchor rods in the anchor rod library are fed into the gripping groove of the gripper on the gripper assembly;

[0056] Then, the rock drill pushes down the support during the process of driving the anchor bolt, so that it changes from the first state to the second state, interferes with the reset of the support, and separates the gripper from the anchor bolt;

[0057] Finally, after the anchor rod is driven in, the rock drill retreats, and the support automatically returns to the first state under the action of the mechanical reset mechanism, completing a working cycle.

[0058] 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 gripper assembly, characterized in that: Including base, support and gripper; The first end of the support is hinged to the base, and the gripper is arranged at the second end of the support; The support has a first state and a second state: In the first state, the gripper on the support faces a first direction; In the second state, the gripper on the support faces a second direction; A mechanical reset mechanism is provided between the base and the support so that the support has a tendency to remain in the first state.

2. The gripper assembly according to claim 1, characterized in that: The first direction is a direction toward the top of the base, and the second direction is a direction toward the side of the base.

3. The gripper assembly according to claim 2, characterized in that: The mechanical reset mechanism is a tension spring, one end of which is connected to the base, and the other end of which is connected to the support.

4. The gripper assembly according to claim 2, characterized in that: The first end of the support is hinged to the base via a pin shaft, and the mechanical reset mechanism is a coil spring arranged on the pin shaft.

5. The gripper assembly according to any one of claims 1 to 4, characterized in that: The gripper comprises a compression spring and two clamping claws; The clamping jaws are hinged at the second end of the support, and the two clamping jaws are symmetrical to each other along the symmetry axis; The first ends of the two clamping jaws are connected via the compression spring, and the second ends of the two clamping jaws constitute the grasping end of the gripper.

6. The gripper assembly according to claim 5, characterized in that: The gripper further comprises a limit plate, the limit plate is fixedly arranged at the second end of the support, and the clamping claw is hinged between the limit plate and the support; The two sides of the limit plate are provided with baffles corresponding to the two clamping jaws, and the baffles are located on the rotation path of the clamping jaws on the corresponding side to limit the minimum opening size of the gripping end of the gripper.

7. The gripper assembly according to claim 5, characterized in that: A groove is provided on one side of the clamping jaws facing the symmetry axis, and the grooves on the two clamping jaws constitute a grasping groove.

8. The gripper assembly according to claim 5, characterized in that: The second end of the clamping jaw extends in a direction away from the symmetry axis.

9. The gripper assembly according to claim 5, characterized in that: The second end of the clamping jaw is a rounded structure.

10. An anchor trolley, characterized in that: The propulsion beam of the anchor trolley is provided with a gripper assembly as claimed in any one of claims 1 to 9.

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