A tooth and tooth socket connection device

Abstract

The utility model relates to the technical field of bucket tooth, especially for a tooth and tooth holder connecting device, including connecting pin, the inside of connecting pin is provided with fixed establishment, it is used for fixing connecting pin in tooth holder, the outer wall sliding connection of connecting pin has protective sheath, the outer wall of protective sheath and in away from connecting pin fixed connection has the pull ring, through setting up a tooth and tooth holder connecting device, the problem that the excess fit between it and bucket tooth and tooth holder when the current connecting device installs bucket tooth on tooth holder, the more cumbersome problem of installation operation has been solved.

Description

Technical Field

[0001] This utility model relates to the field of bucket tooth technology, specifically a tooth and tooth seat connection device. Background Technology

[0002] Excavators are a common type of equipment widely used in the fields of engineering machinery and mining machinery. Among them, the bucket teeth are an important component of the excavator. The bucket teeth can protect the working end of the excavator bucket from premature and rapid wear. At the same time, the bucket teeth can reduce the force-bearing area of ​​the bucket and increase the pressure of the bucket cutting into the ground, thereby enhancing the excavator bucket's cutting ability. The connecting pin is the connecting device that mounts the bucket teeth on the tooth seat.

[0003] However, the existing connecting device still has shortcomings. Specifically, when the bucket teeth are installed on the tooth holder, the existing connecting device has an interference fit between itself and the bucket teeth and tooth holder, making the installation operation relatively cumbersome. Utility Model Content

[0004] The purpose of this invention is to provide a tooth and tooth seat connection device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A tooth and tooth seat connection device includes a connecting pin, wherein a fixing mechanism is provided inside the connecting pin for fixing the connecting pin in the tooth seat, a protective sleeve is slidably connected to the outer wall of the connecting pin, and a pull ring is fixedly connected to the outer wall of the protective sleeve away from the connecting pin. The fixing mechanism includes a rotating shaft rotatably connected to the center of the connecting pin. Adjusting plates are fixedly connected above and below the center of the outer wall of the rotating shaft and inside the connecting pin. A locking block is slidably connected inside the connecting pin and near the adjusting plate. An inner spring is fixedly connected to the outer wall of the locking block and inside the connecting pin. An adjusting screw is installed on the top of the connecting pin. A connecting block is fixedly connected to the bottom of the adjusting screw. A limiting pin is fixedly connected to the center of the connecting block. A connecting groove is opened inside the rotating shaft at the corresponding position of the limiting pin. An anti-slip pad is fixedly connected to the outer wall of the locking block and inside the connecting pin.

[0006] As a preferred embodiment of this utility model, the connecting pin is made of stainless steel, the protective sleeve is made of polyethylene plastic, and the shape of the protective sleeve is adapted to the shape of the connecting pin.

[0007] Through the above technical solution, the protective sleeve can protect the connecting pin and prevent damage during transportation.

[0008] As a preferred embodiment of this utility model, the protective sleeve is provided in two sets, and the length of each set of protective sleeves is half the length of the connecting pin, and the pull ring is a semi-circular structure design.

[0009] As a preferred embodiment of this utility model, the adjusting plate, the locking block, the connecting block, and the limiting pin are all made of stainless steel. The adjusting screw passes through and extends beyond the connecting pin. The connecting pin has a threaded groove inside and at the corresponding position of the adjusting screw. The threaded groove and the adjusting screw are connected by a threaded connection.

[0010] Through the above technical solutions, the stainless steel clamps and limit pins have high structural strength and are not easily damaged.

[0011] As a preferred embodiment of this utility model, the anti-slip pad is made of rubber, and multiple sets of the locking block and adjusting plate are provided. The adjusting plate has an arc-shaped structure design. The connecting pin has a through groove inside and at the corresponding position of the locking block, and the through groove and the locking block are slidably connected. The inner spring and the connecting pin are fixedly connected.

[0012] As a preferred embodiment of this utility model, the limiting pin has a hexagonal structure design, the shape of the connecting groove is adapted to the shape of the limiting pin, the limiting pin passes through and extends into the connecting groove, and the connection between the connecting groove and the limiting pin is a sliding connection.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, by setting a tooth and tooth seat connecting device, pulling the pull ring removes the protective sleeve from the connecting pin, placing the bucket tooth on the tooth seat, inserting the connecting pin, the connecting pin will pass through the bucket tooth and tooth seat, rotating the adjusting screw will drive the limiting pin to screw into the connecting pin, the limiting pin will drive the rotating shaft to rotate, the rotating shaft will drive the adjusting plate to move closer to the locking block, the continuously approaching adjusting plate will push the locking block to move outward, the outward moving locking block will abut against the bucket tooth and tooth seat, thereby fixing the connecting pin in the bucket tooth and tooth seat, the bucket tooth is fixedly installed on the tooth seat, the installation operation is more convenient, and it solves the problem that the existing connecting device has an interference fit between the bucket tooth and the tooth seat when installing the bucket tooth on the tooth seat, and the installation operation is more cumbersome. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is an exploded view of the three-dimensional structure of this utility model; Figure 3 This is a top cross-sectional view of the connecting pin of this utility model; Figure 4 This is an exploded three-dimensional view of the rotating shaft of this utility model.

[0015] In the diagram: 1-connecting pin, 2-fixing mechanism, 3-protective sleeve, 4-pull ring, 201-rotating shaft, 202-adjusting plate, 203-block, 204-inner spring, 205-adjusting screw, 206-rotating plate, 207-limiting pin, 208-connecting groove, 209-anti-slip pad. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0018] For examples, please refer to Figure 1-4 This utility model provides a technical solution: A tooth and tooth seat connection device includes a connecting pin 1, a fixing mechanism 2 is provided inside the connecting pin 1 for fixing the connecting pin 1 in the tooth seat, a protective sleeve 3 is slidably connected to the outer wall of the connecting pin 1, and a pull ring 4 is fixedly connected to the outer wall of the protective sleeve 3 away from the connecting pin 1.

[0019] The connecting pin 1 is made of stainless steel, the protective sleeve 3 is made of polyethylene plastic, the shape of the protective sleeve 3 is adapted to the shape of the connecting pin 1, there are two sets of protective sleeves 3, and the length of each set of protective sleeves 3 is half the length of the connecting pin 1, and the pull ring 4 is a semi-circular structure design. In this embodiment, reference Figure 2 , Figure 3 as well as Figure 4The fixing mechanism 2 includes a rotating shaft 201 rotatably connected to the center of the connecting pin 1. An adjusting plate 202 is fixedly connected above and below the center of the outer wall of the rotating shaft 201 and inside the connecting pin 1. A locking block 203 is slidably connected inside the connecting pin 1 and near the adjusting plate 202. An inner spring 204 is fixedly connected to the outer wall of the locking block 203 and inside the connecting pin 1. An adjusting screw 205 is installed on the top of the connecting pin 1. A connecting block 206 is fixedly connected to the bottom of the adjusting screw 205. A limiting pin 207 is fixedly connected to the center of the connecting block 206. A connecting groove 208 is opened inside the rotating shaft 201 and at the corresponding position of the limiting pin 207. An anti-slip pad 209 is fixedly connected to the outer wall of the locking block 203 and inside the connecting pin 1. The adjusting plate 202, locking block 203, connecting block 206, and limiting pin 207 are all made of stainless steel. The adjusting screw 205 passes through and extends to the outside of the connecting pin 1. A threaded groove is opened inside the connecting pin 1 at the corresponding position of the adjusting screw 205, and the threaded groove is connected to the adjusting screw 205 by a threaded connection. The anti-slip pad 209 is made of rubber. Multiple sets of locking blocks 203 and adjusting plates 202 are provided. The adjusting plate 202 has an arc-shaped structure design. A through groove is opened inside the connecting pin 1 at the corresponding position of the locking block 203, and the through groove is slidably connected to the locking block 203. The inner spring 204 is fixedly connected to the connecting pin 1. The limiting pin 207 has a hexagonal structure design. The shape of the connecting groove 208 is adapted to the shape of the limiting pin 207. The limiting pin 207 passes through and extends into the connecting groove 208. The connecting groove 208 is slidably connected to the limiting pin 207. When the connecting pin 1 is inserted, it will pass through the bucket teeth. With the gear seat in place, rotating the adjusting screw 205 causes the limiting pin 207 to enter the connecting groove 208. The limiting pin 207 then drives the rotating shaft 201 to rotate. The rotating shaft 201 causes the adjusting plate 202 to move closer to the locking block 203. The continuously approaching adjusting plate 202 pushes the locking block 203 outward. The outwardly moving locking block 203 abuts against the bucket tooth and gear seat, thereby fixing the connecting pin 1 inside the bucket tooth and gear seat. The bucket tooth is then fixedly installed on the gear seat. During disassembly, the adjusting screw 205 is unscrewed in the opposite direction. The unscrewed adjusting screw 205 will drive the limiting pin 207 to move outward. The limiting pin 207 will drive the rotating shaft 201 to rotate in the opposite direction. The rotating shaft 201 will drive the adjusting plate 202 away from the locking block 203. The adjusting plate 202 will no longer be against the locking block 203. The inner spring 204 will drive the locking block 203 to move inward. The locking block 203 will no longer be against the bucket teeth and tooth seat. Pull the connecting pin 1 to remove the connecting pin 1 from the bucket teeth and tooth seat.

[0020] The working process of this utility model is as follows: When using the tooth and tooth seat connecting device designed in this solution, the bucket tooth is placed on the tooth seat, and the connecting pin 1 is inserted. The connecting pin 1 passes through the bucket tooth and the tooth seat. The adjusting screw 205 is rotated, and the screwed-in adjusting screw 205 will drive the limiting pin 207 into the depth of the connecting groove 208. The limiting pin 207 will drive the rotating shaft 201 to rotate. The rotating shaft 201 will drive the adjusting plate 202 to move closer to the locking block 203. The continuously approaching adjusting plate 202 will push the locking block 203 to move outward. The outwardly moving locking block 203 will abut against the bucket tooth and the tooth seat. This fixes the connecting pin 1 inside the bucket teeth and tooth holder. The bucket teeth are fixedly installed on the tooth holder. When disassembling, the adjusting screw 205 is turned out in the opposite direction. The turned-out adjusting screw 205 will drive the limiting pin 207 to move outward. The limiting pin 207 will drive the rotating shaft 201 to rotate in the opposite direction. The rotating shaft 201 will drive the adjusting plate 202 away from the locking block 203. The adjusting plate 202 will no longer be against the locking block 203. The inner spring 204 will drive the locking block 203 to move inward. The locking block 203 will no longer be against the bucket teeth and tooth holder. Pull the connecting pin 1 to remove the connecting pin 1 from the bucket teeth and tooth holder.

[0021] All standard parts used in this application can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art and are also general components, which are common knowledge in this field.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tooth and tooth seat connection device comprising a connecting pin (1), characterized in that: The connecting pin (1) is provided with a fixing mechanism (2) for fixing the connecting pin (1) in the tooth seat. The outer wall of the connecting pin (1) is slidably connected with a protective sleeve (3). The outer wall of the protective sleeve (3) is fixedly connected with a pull ring (4) away from the connecting pin (1). The fixing mechanism (2) includes a rotating shaft (201) rotatably connected to the center of the connecting pin (1). An adjusting plate (202) is fixedly connected above and below the center of the outer wall of the rotating shaft (201) and inside the connecting pin (1). A locking block (203) is slidably connected inside the connecting pin (1) and near the adjusting plate (202). An inner spring (204) is fixedly connected to the outer wall of the locking block (203) and inside the connecting pin (1). An adjusting screw (205) is installed on the top of the connecting pin (1). A connecting block (206) is fixedly connected to the bottom of the adjusting screw (205). A limiting pin (207) is fixedly connected to the center of the inner wall of the connecting block (206). A connecting groove (208) is opened inside the rotating shaft (201) and at the corresponding position of the limiting pin (207). An anti-slip pad (209) is fixedly connected to the outer wall of the locking block (203) and inside the connecting pin (1).

2. A tooth and tooth socket coupling device according to claim 1, wherein: The connecting pin (1) is made of stainless steel, and the protective sleeve (3) is made of polyethylene plastic. The shape of the protective sleeve (3) is adapted to the shape of the connecting pin (1).

3. A tooth and tooth socket coupling device according to claim 1, wherein: The protective sleeve (3) is provided in two sets, and the length of each set of protective sleeve (3) is half the length of the connecting pin (1). The pull ring (4) is a semi-circular structure design.

4. A tooth and tooth socket coupling device according to claim 1, wherein: The adjusting plate (202), the locking block (203), the connecting block (206), and the limiting pin (207) are all made of stainless steel. The adjusting screw (205) passes through and extends to the outside of the connecting pin (1). The connecting pin (1) has a threaded groove inside and at the corresponding position of the adjusting screw (205). The threaded groove and the adjusting screw (205) are connected by a threaded connection.

5. A tooth and tooth socket coupling device according to claim 1, wherein: The anti-slip pad (209) is made of rubber. Multiple sets of the locking block (203) and adjusting plate (202) are provided. The adjusting plate (202) has an arc-shaped structure design. The connecting pin (1) has a through groove inside and at the corresponding position of the locking block (203). The through groove and the locking block (203) are slidably connected. The inner spring (204) is fixedly connected to the connecting pin (1).

6. A tooth and tooth socket coupling device according to claim 1, wherein: The limiting pin (207) is designed with a hexagonal structure. The shape of the connecting groove (208) is adapted to the shape of the limiting pin (207). The limiting pin (207) passes through and extends into the connecting groove (208). The connection between the connecting groove (208) and the limiting pin (207) is a sliding connection.

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