Crusher hammerhead convenient to install

Abstract

The utility model discloses a crusher hammerhead convenient to install, which belongs to the technical field of crusher hammerheads and comprises a hammer handle, a hammerhead body attached to the bottom end of the hammer handle is arranged at the bottom of the hammer handle, a first clamping groove is formed in the middle of the bottom end of the hammer handle, and a second clamping groove is formed in the middle of the top of the hammerhead body. The first clamping groove and the second clamping groove are symmetrical to each other, and the first clamping groove and the second clamping groove are both in an inverted-T shape. The first clamping groove and the second clamping groove which are symmetrical to each other are formed in the bottom end of the hammer handle and the top end of the hammer head body respectively, the two sets of U-shaped clamping plates are matched for clamping connection, the U-shaped clamping plates are expanded and limited through the screw rod, and therefore the device is of a detachable structure, and the practicability is high. In the installation and use process, the device is connected and fastened through the U-shaped clamping plate, the screw is not subjected to impact force, the installation stability of the device is guaranteed, and disassembly and assembly are more convenient.

Description

Technical Field

[0001] The utility model relates to a hammer head, in particular to a crusher hammer head convenient for installation, belonging to the technical field of crusher hammer heads. Background Technique

[0002] In the prior art, a crusher hammer head convenient for installation is disclosed in the utility model with the publication number of 202220253473.2. In order to solve the problem that the whole hammer head needs to be disassembled and replaced when a part of the hammer head is damaged, the hammer head is designed as a detachable structure, which can be partially replaced only after partial damage, improving the utilization rate of local parts, and the fixing installation is carried out by using a threaded rod fixing method, and the assembly is convenient.

[0003] The following deficiencies still exist in the applications similar to the above:

[0004] 1. During the use of the hammer head, the first hammer head part and the second hammer head part are connected by a threaded rod, and the connection stability of the hammer head is ensured by relying on the resistance of the tooth pressure. When the hammer head is crushing, a large impact force will be exerted on the tooth pressure of the threaded rod, and the tooth pressure will deform after long-term use, resulting in inconvenient disassembly of the device;

[0005] 2. During the assembly of the hammer head, the insertion rod needs to pass through the inside of the installation hole. When the crusher is in use, sliding friction will occur between the hammer head and the installation rod, causing wear on the top inside the installation hole of the hammer head and the insertion rod, reducing the service life of the hammer head and the insertion rod;

[0006] Therefore, a crusher hammer head convenient for installation is designed to optimize the above problems. Content of the Utility Model

[0007] The main purpose of the utility model is to provide a crusher hammer head convenient for installation. By respectively opening symmetric first clamping grooves and second clamping grooves at the bottom end of the hammer handle and the top end of the hammer head body, and then cooperating with two U-shaped clamping plates for clamping connection, and using a screw rod to expand and limit the U-shaped clamping plates, the device is made into a detachable structure, and during the installation and use process, the U-shaped clamping plates are used to tighten the connection of the device, and the screw rod will not be affected by the impact force, ensuring the installation stability of the device and making the disassembly and assembly more convenient. By providing a wear-resistant mechanism composed of an arc-shaped reinforcement plate and a ball at the top inside the installation hole, during the use of the device, the sliding friction between the top of the installation hole and the insertion rod can be changed into rolling friction, reducing the friction resistance and the wear rate of the device and the insertion rod, and improving the service life of the device.

[0008] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0009] A crusher hammer head that is convenient for installation, including a hammer handle. At the bottom of the hammer handle, there is a hammer head main body that fits the bottom end of the hammer handle. At the middle position of the bottom end of the hammer handle, a first card slot is opened. At the middle position of the top of the hammer head main body, a second card slot is opened. The first card slot and the second card slot are symmetrical to each other, and the shapes of the first card slot and the second card slot are both convex-shaped. On both sides between the first card slot and the second card slot, there are U-shaped card plates. The two ends of the U-shaped card plates are respectively stuck inside the first card slot and the second card slot. On the outer sides of the ends of the U-shaped card plates, there are bevel edges. At the middle position of the bottom of the hammer head main body, a threaded hole extending into the second card slot is opened. Inside the threaded hole, a screw is threadedly installed, and the top end of the screw fits against the side of the U-shaped card plate. An installation hole is opened on the hammer handle, and a wear-resistant mechanism is provided at the inner top of the installation hole.

[0010] Preferably: The bottom end of the screw is provided with a convex head, and a strip-shaped groove is provided on the convex head. At the middle position of the bottom end of the hammer head main body, a hidden groove for limiting the convex head is opened.

[0011] Preferably: An arc-shaped groove is opened along the length direction on the outer side of the U-shaped card plate, and the arc-shaped groove fits against the outer side of the screw.

[0012] Preferably: The outer side of the top end of the screw is a smooth surface, the outer side of the bottom end of the screw is provided with threads, and a tapered edge is provided on the outer side of the top end of the screw.

[0013] Preferably: The wear-resistant mechanism includes an arc-shaped reinforcement plate and ball bearings. The arc-shaped reinforcement plate is fixed at the inner top of the installation hole. A limit groove with the same shape as the arc-shaped reinforcement plate is opened at the inner top of the installation hole. Ball bearings are evenly rotatably installed at the inner bottom of the arc-shaped reinforcement plate.

[0014] Preferably: Both ends of the installation hole are provided with openings, and the inner diameter of the end of the opening far from the installation hole is larger than the inner diameter of the installation hole.

[0015] The beneficial effects of the present utility model are:

[0016] The crusher hammer head convenient for installation provided by the present utility model, by respectively opening a symmetrical first card slot and a second card slot at the bottom end of the hammer handle and the top end of the hammer head main body, then cooperating with two groups of U-shaped card plates for clamping, and using a screw to expand and limit the U-shaped card plates, makes the device a detachable structure, and during the installation and use process, the U-shaped card plates are used to fasten the connection of the device, and the screw will not be subjected to impact force, ensuring the installation stability of the device and making the disassembly and assembly more convenient;

[0017] By providing a wear-resistant mechanism composed of an arc-shaped reinforcement plate and ball bearings at the inner top of the installation hole, during the use of the device, the sliding friction mode between the top of the installation hole and the insertion rod can be changed to rolling friction, reducing the friction resistance and the wear rate of the device and the insertion rod, and improving the service life of the device. Description of the Drawings

[0018] Figure 1 is the front view cross-section of the present utility model;

[0019] Figure 2 is the cross-section view of the hammer handle of the present utility model;

[0020] Figure 3 is the front view of the hammer handle of the present utility model;

[0021] Figure 4 is the U-shaped clamping plate diagram of the present utility model.

[0022] In the figure: 1. Hammer handle; 2. Hammer head body; 3. First card slot; 4. Second card slot; 5. U-shaped clamping plate; 6. Hypotenuse; 7. Threaded hole; 8. Screw; 9. Hidden groove; 10. Mounting hole; 11. Wear-resistant mechanism; 12. Arc-shaped reinforcement plate; 13. Ball; 14. Open end. Specific embodiments

[0023] To make the technical solutions of the present utility model clearer and more definite for those skilled in the art, the present utility model will be further described in detail below in conjunction with the embodiments and the accompanying drawings. However, the implementation manners of the present utility model are not limited thereto.

[0024] As Figure 1-Figure 4 shown, this embodiment provides a crusher hammer head that is easy to install, including a hammer handle 1. The bottom of the hammer handle 1 is provided with a hammer head body 2 that fits the bottom end of the hammer handle 1. A first card slot 3 is opened at the middle position of the bottom end of the hammer handle 1, and a second card slot 4 is opened at the middle position of the top of the hammer head body 2. The first card slot 3 and the second card slot 4 are symmetric with each other, and the shapes of the first card slot 3 and the second card slot 4 are both convex-shaped. A U-shaped clamping plate 5 is provided between the two sides of the first card slot 3 and the second card slot 4. The two ends of the U-shaped clamping plate 5 are respectively stuck inside the first card slot 3 and the second card slot 4. Hypotenuses 6 are provided on the outer sides of the ends of the U-shaped clamping plate 5. A threaded hole 7 extending to the inside of the second card slot 4 is opened at the middle position of the bottom of the hammer head body 2. A screw 8 is threadedly installed inside the threaded hole 7, and the top end of the screw 8 fits against the side of the U-shaped clamping plate 5. A mounting hole 10 is opened on the hammer handle 1, and a wear-resistant mechanism 11 is provided at the inner top of the mounting hole 10.

[0025] Overall working principle: When assembling the hammer head, first fit two U-shaped clamping plates 5 back to back, then insert them into the inside of the first clamping groove 3 simultaneously. Next, align the second clamping groove 4 on the hammer head body 2 with the U-shaped clamping plates 5 and insert the other side of the U-shaped clamping plates 5 into the inside of the second clamping groove 4. Then insert the screw rod 8 into the inside of the threaded hole 7. During the tightening process of the screw rod 8, it first fits with the inclined side 6 of the U-shaped clamping plates 5, and at the same time applies an extrusion force to the two U-shaped clamping plates 5, separating the two U-shaped clamping plates 5 and clamping them tightly inside the first clamping groove 3 and the second clamping groove 4 to complete the assembly of the device. Then install the device inside the crusher, and use the insertion rod inside the crusher to pass through the installation hole 10 to position the device. During the use process, the screw rod 8 will not be impacted, and the hammer handle 1 and the hammer head body 2 are connected through the two U-shaped clamping plates 5.

[0026] In this embodiment, a convex head is provided at the bottom end of the screw rod 8, and a strip-shaped groove is provided on the convex head. A hidden groove 9 for limiting the convex head is opened at the middle position of the bottom end of the hammer head body 2.

[0027] Local working principle: During the installation process of the screw rod 8, first manually tighten the convex head to install the screw rod 8, then use a flat-blade screwdriver to insert into the inside of the strip-shaped groove for further tightening and fixing, and hide the convex head inside the hidden groove 9 to avoid damage to the convex head during the crushing process.

[0028] In this embodiment, an arc-shaped groove is opened along the length direction on the outer side of the U-shaped clamping plate 5, and the arc-shaped groove fits on the outer side of the screw rod 8.

[0029] Local working principle: The fitting connection between the U-shaped clamping plate 5 and the screw rod 8 is increased, ensuring the stability of the U-shaped clamping plate 5.

[0030] In this embodiment, the outer side of the top end of the screw rod 8 is a smooth surface, the outer side of the bottom end of the screw rod 8 is provided with threads, and a tapered edge is provided on the outer side of the top end of the screw rod 8.

[0031] Local working principle: The setting of the tapered edge at the end of the screw rod 8 can make it more convenient to insert between the inclined sides 6 of the two U-shaped clamping plates 5, facilitating the opening of the U-shaped clamping plates 5.

[0032] In this embodiment, the wear-resistant mechanism 11 includes an arc-shaped reinforcement plate 12 and balls 13. The arc-shaped reinforcement plate 12 is fixed to the inner top of the installation hole 10. A limiting groove having the same shape as the arc-shaped reinforcement plate 12 is opened at the inner top of the installation hole 10. Balls 13 are evenly and rotatably installed at the inner bottom of the arc-shaped reinforcement plate 12.

[0033] Local working principle: During the installation and use process, the balls 13 fit with the outer side of the insertion rod, changing the transmission sliding friction method to rolling friction and reducing the friction resistance.

[0034] In this embodiment, both ends of the mounting hole 10 are provided with openings 14 , and the inner diameter of the opening 14 away from the mounting hole 10 is larger than the inner diameter of the mounting hole 10 .

[0035] Partial working principle: When the insertion rod is inserted from the inside of the mounting hole 10, it can be easily aligned with the mounting hole 10, making the insertion more convenient.

[0036] The above is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the scope disclosed by the present invention according to the technical solution and concept of the present invention, which fall within the protection scope of the present invention.

Claims

1. A hammer head for a crusher that is easy to install, characterized in that: It includes a hammer handle (1). At the bottom of the hammer handle (1), there is a hammer head main body (2) that fits against the bottom end of the hammer handle (1). At the middle position of the bottom end of the hammer handle (1), a first card slot (3) is opened. At the middle position of the top of the hammer head main body (2), a second card slot (4) is opened. The first card slot (3) and the second card slot (4) are symmetrical to each other, and the shapes of the first card slot (3) and the second card slot (4) are both convex-shaped. On both sides between the first card slot (3) and the second card slot (4), there are U-shaped card plates (5). The two ends of the U-shaped card plate (5) are respectively stuck inside the first card slot (3) and the second card slot (4). On the outer sides of the ends of the U-shaped card plate (5), there are bevel edges (6). At the middle position of the bottom of the hammer head main body (2), a threaded hole (7) extending into the second card slot (4) is opened. Inside the threaded hole (7), a screw (8) is threadedly installed, and the top end of the screw (8) fits against the side of the U-shaped card plate (5). An installation hole (10) is opened on the hammer handle (1), and a wear-resistant mechanism (11) is provided at the inner top of the installation hole (10).

2. The hammer head of a crusher that is easy to install according to claim 1, characterized in that: At the bottom end of the screw (8), there is a convex head, and a strip-shaped groove is provided on the convex head. At the middle position of the bottom end of the hammer head main body (2), a hidden groove (9) for limiting the convex head is opened.

3. The hammer head of a crusher that is easy to install according to claim 1, characterized in that: An arc-shaped groove is opened along the length direction on the outer side of the U-shaped card plate (5), and the arc-shaped groove fits against the outer side of the screw (8).

4. The hammer head of a crusher that is easy to install according to claim 3 is characterized in that: The outer side of the top end of the screw (8) is a smooth surface. The outer side of the bottom end of the screw (8) is provided with threads, and a tapered edge is provided on the outer side of the top end of the screw (8).

5. A hammer head for a crusher that is easy to install according to any one of claims 1 to 4, characterized in that: The wear-resistant mechanism (11) includes an arc-shaped reinforcement plate (12) and balls (13). The arc-shaped reinforcement plate (12) is fixed at the inner top of the installation hole (10). At the inner top of the installation hole (10), a limit groove having the same shape as the arc-shaped reinforcement plate (12) is opened. The balls (13) are evenly and rotatably installed at the inner bottom of the arc-shaped reinforcement plate (12).

6. The hammer head of a crusher that is easy to install according to claim 5, characterized in that: Openings (14) are opened at both ends of the installation hole (10), and the inner diameter of the end of the opening (14) away from the installation hole (10) is larger than the inner diameter of the installation hole (10).

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