Crusher hammer head structure with connected anti-loose assembly

By setting a fastening and limiting mechanism on the crusher hammer, the problem of the hammer handle being pulled by centrifugal force is solved, which improves the stability and service life of the hammer and reduces wear.

CN224405250UActive Publication Date: 2026-06-26HANGZHOU AUBEMA MASCH EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU AUBEMA MASCH EQUIP CO LTD
Filing Date
2025-09-09
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The hammer holes in the hammer head and hammer handle are easily pulled outward by centrifugal force, causing the hammer holes to enlarge and eventually break, damaging the crusher.

Method used

The crusher hammer structure adopts a connection anti-loosening component, including a fastening mechanism and a limiting mechanism. The fastening mechanism consists of a first sleeve, a second sleeve, a retaining ring, a moving ring, and a fastening rod, while the limiting mechanism consists of a limiting plate, a moving rod, and a spring, which improves the stability of the hammer and the tightness of the connection.

Benefits of technology

It improves the stability of the breaker hammer, reduces the chance of the hammer falling off, extends the service life of the hammer, and reduces wear caused by impact.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224405250U_ABST
    Figure CN224405250U_ABST
Patent Text Reader

Abstract

The utility model discloses a breaker hammer head structure with connecting anti-loose assembly relates to the technical field of breaker, and the utility model discloses a main shaft is equipped with the connecting shaft of annular distribution on the outside of main shaft, and the outside of main shaft and connecting shaft can detachable installation multiple rotor disc, and the outside of connecting shaft can detachable installation has multiple breaker hammer head, and the breaker hammer head is divided into head and handle part, and the handle part of breaker hammer head is equipped with fastening mechanism, the fastening mechanism of setting can let multiple breaker hammer head carry out close connection between, on one hand, promote the stability of breaker hammer head, reduce the probability of hammer head from the disengagement of connecting shaft, and when one of the breaker hammer head is in the crushing, other hammer head can bear a part of impact force, reduce the loss of hammer head, the movement distance of first mobile ring and second mobile ring can be positioned through the limiting mechanism of setting, avoid the influence of the loosening of clamping rod and fastening rod that is easy to receive the shock, promote the stability of connection.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of crusher technology, specifically to a crusher hammer structure with a connecting anti-loosening component. Background Technology

[0002] The crusher hammer is the core component of a hammer crusher, used to rotate at high speed and strike materials to crush them into the required particle size; it is mounted on the rotor hammer shaft and is a vulnerable and critical component of the hammer crusher.

[0003] The announcement number "CN206823912U" describes a hammer handle fixed to a crusher pin and a hammer head body fixedly connected to or integrally formed with the hammer handle for striking materials. The hammer head body is block-shaped, with its rotating front and upper surface serving as the working surface for striking materials. Adjacent strip grooves are arranged backward and downward from the corner where the rotating front and upper surface intersect, and hard alloy blocks or strips are embedded in these grooves and welded securely. At least one layer of high-hardness wear-resistant material is deposited on the hammer head body surface on both sides of the working surface and on the downward extension of the rotating front of the hammer head body using a welding technique. The hammer handle consists of a bushing with a pin hole in the middle, which is connected to the hammer head body via a connecting neck. It features a simple structure, convenient installation and use, high strength, good wear resistance, and long service life.

[0004] The aforementioned patent features a simple structure, convenient use and installation, high strength, good wear resistance, and long service life. However, the patent focuses on improving the stability of the hammer head. When the equipment is running at high speed, the hammer hole in the hammer handle is easily pulled outward by centrifugal force, causing the hammer hole to be continuously enlarged and eventually break, damaging the inside of the crusher. Utility Model Content

[0005] In order to solve the problem that the hammer hole in the hammer head and hammer handle is easily pulled outward by centrifugal force, the purpose of this utility model is to provide a crusher hammer head structure with a connecting anti-loosening component.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a crusher hammer structure with a connecting anti-loosening component, including a main shaft, a connecting shaft arranged in annularly on the outside of the main shaft, multiple rotor discs that can be detachably installed on the outside of both the main shaft and the connecting shaft, and multiple crushing hammers that can be detachably installed on the outside of the connecting shaft. Each crushing hammer is divided into a head and a handle. The handle of the crushing hammer is provided with a fastening mechanism for connecting two crushing hammers. At the same time, the fastening mechanism is provided with a limiting mechanism to improve the stability of the fastening mechanism.

[0007] Preferably, the fastening mechanism includes a first sleeve and a second sleeve detachably installed on both sides of the bottom of the breaker head. A first retaining ring and a second retaining ring are integrally formed on both sides of the first sleeve and the second sleeve. The outer sides of the first retaining ring and the second retaining ring are provided with annularly distributed retaining grooves. A first moving ring and a second moving ring are movably engaged on the outer sides of the first sleeve and the second sleeve, respectively. The opposite sides of the first moving ring and the second moving ring are provided with annularly distributed retaining rods and fastening rods. The retaining rods are fixedly connected to the first moving rings. The fastening rods rotate through the second moving rings. The retaining rods are provided with threaded grooves inside. The fastening rods are provided with threaded strips that cooperate with the threaded grooves on the outer side.

[0008] Preferably, the limiting mechanism includes a cavity, and symmetrically distributed limiting plates are movably mounted inside the cavity. A movable rod is fixedly installed on the outer side of the limiting plate, and the movable rod passes through the first moving ring and the second moving ring. The limiting plate and the inner wall of the cavity are fixedly connected by a spring, which is in a compressed state. Grooves are provided on the outer sides of both the first sleeve and the second sleeve, and the limiting plate and the grooves are used in conjunction.

[0009] Preferably, symmetrically distributed stabilizing rods are fixed on the outer side of the limiting plate, and the stabilizing rods pass through the first moving ring and the second moving ring.

[0010] Preferably, the inner walls of both the first and second moving rings are provided with symmetrically distributed slots, and the limiting plate and the slots are used in conjunction.

[0011] Preferably, the outer side of the rotor disk has multiple sets of annularly distributed circular holes, and the locking rod, fastening rod and circular holes are used in conjunction.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This application, through its fastening mechanism, enables multiple breaker hammers to be tightly connected. This improves the stability of the breaker hammers and reduces the chance of them detaching from the connecting shaft. At the same time, when one breaker hammer is crushing, the other hammers can share some of the impact force, reducing the wear and tear on the hammers.

[0014] 2. The limiting mechanism in this application can limit the movement distance of the first moving ring and the second moving ring, preventing the locking rod and fastening rod from loosening due to vibration, and improving the stability of the connection. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the structure of the crusher hammer in this utility model.

[0018] Figure 3 This is a schematic diagram of the fastening mechanism in this utility model.

[0019] Figure 4 This is a schematic diagram of the limiting mechanism in this utility model.

[0020] In the diagram: 101, main shaft; 102, connecting shaft; 103, rotor disc; 104, breaker hammer; 105, fastening mechanism; 106, limiting mechanism; 1, first sleeve; 11, second sleeve; 12, first retaining ring; 13, second retaining ring; 14, retaining groove; 15, first moving ring; 16, second moving ring; 17, retaining rod; 18, fastening rod; 19, threaded groove; 191, threaded strip; 2, cavity; 21, limiting plate; 22, movable rod; 23, spring; 24, groove; 3, stabilizing rod; 4, empty slot; 5, round hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figure 1-4 As shown, this utility model discloses a crusher hammer structure with a connecting anti-loosening component, and provides the following two embodiments:

[0023] Example 1: A crusher hammer structure with a connecting anti-loosening component includes a main shaft 101. A connecting shaft 102 is provided on the outer side of the main shaft 101 in an annular arrangement. Multiple rotor discs 103 can be detachably installed on the outer side of both the main shaft 101 and the connecting shaft 102. Multiple crushing hammers 104 are detachably installed on the outer side of the connecting shaft 102. Each crushing hammer 104 is divided into a head and a handle. The handle of the crushing hammer 104 is provided with a fastening mechanism 105 for connecting two crushing hammers 104. At the same time, the fastening mechanism 105 is provided with a limiting mechanism 106 to improve the stability of the fastening mechanism 105.

[0024] Example 2 differs from Example 1 in that: the fastening mechanism 105 includes a first sleeve 1 and a second sleeve 11 detachably installed on both sides of the bottom of the breaker head 104. A first retaining ring 12 and a second retaining ring 13 are integrally formed on both sides of the first sleeve 1 and the second sleeve 11, respectively. The outer sides of the first retaining ring 12 and the second retaining ring 13 are provided with annularly distributed retaining grooves 14. The outer sides of the first sleeve 1 and the second sleeve 11 are respectively movably fitted with a first moving ring 15 and a second moving ring 16. The opposite sides of the first moving ring 15 and the second moving ring 16 are respectively provided with annularly distributed retaining rods 17 and fastening rods 18. The retaining rods 17 and the first moving ring 15 are fixedly connected. The fastening rods 18 rotatably pass through the second moving ring 16. The inside of the retaining rods 17 is provided with a threaded groove 19. The outer side of the fastening rods 18 is provided with a threaded strip 191 that cooperates with the threaded groove 19.

[0025] The limiting mechanism 106 includes a cavity 2. Symmetrically distributed limiting plates 21 are movably mounted inside the cavity 2. A movable rod 22 is fixedly installed on the outer side of the limiting plate 21, passing through the first moving ring 15 and the second moving ring 16. The limiting plate 21 and the inner wall of the cavity 2 are fixedly connected by a spring 23, which is in a compressed state. Grooves 24 are provided on the outer sides of both the first sleeve 1 and the second sleeve 11. The limiting plate 21 and the grooves 24 work together. Through the limiting mechanism 106, the movement distance of the first moving ring 15 and the second moving ring 16 can be limited, preventing the locking rod 17 and the fastening rod 18 from loosening due to vibration, thus improving the stability of the connection.

[0026] The outer side of the limiting plate 21 is fixed with symmetrically distributed stabilizing rods 3. The stabilizing rods 3 pass through the first moving ring 15 and the second moving ring 16. By setting the stabilizing rods 3, the limiting plate 21 can be limited to avoid jamming and improve stability.

[0027] The inner walls of the first moving ring 15 and the second moving ring 16 are both provided with symmetrically distributed slots 4. The limiting plate 21 and the slots 4 are used together. By setting the slots 4, the limiting plate 21 can be smoothly inserted into the groove 24 from the cavity 2.

[0028] Multiple sets of annularly distributed circular holes 5 are provided on the outer side of the rotor disk 103. The locking rod 17, the fastening rod 18 and the circular holes 5 are used in conjunction. By setting the circular holes 5, the locking rod 17 and the fastening rod 18 can make smooth contact and thus connect.

[0029] Working principle: In actual use, the first retaining ring 12 and the second retaining ring 13 on the outside of the first sleeve 1 and the second sleeve 11 are respectively installed at the bottom of the breaker hammer 104 with fixing screws. Then, the first moving ring 15 and the second moving ring 16 at the bottom of the other breaker hammer 104 are pushed to move towards each other. At this time, the locking rod 17 and the fastening rod 18 move with the first moving ring 15 and the second moving ring 16 respectively. When the locking rod 17 and the fastening rod 18 come into contact, by rotating the fastening rod 18, the threaded strip 191 on the outside of the fastening rod 18 enters the threaded groove 19 inside the locking rod 17, completing the connection between the locking rod 17 and the fastening rod 18. When the first moving ring 15 and the second moving ring 16 come to the top of the groove 24 respectively, the spring 23, which is in a compressed state, drives the limiting plate 21 into the groove 24, completing the limiting of the first moving ring 15 and the second moving ring 16.

[0030] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A hammer head structure of a crusher with a connected anti-loosening assembly, comprising a main shaft (101), characterized in that: The main shaft (101) is provided with a ring-shaped connecting shaft (102) on its outer side. Multiple rotor discs (103) can be detachably installed on the outer side of both the main shaft (101) and the connecting shaft (102). Multiple breaker hammers (104) can be detachably installed on the outer side of the connecting shaft (102). Each breaker hammer (104) is divided into a head and a handle. The handle of the breaker hammer (104) is provided with a fastening mechanism (105) for connecting two breaker hammers (104). At the same time, the fastening mechanism (105) is provided with a limiting mechanism (106) to improve the stability of the fastening mechanism (105).

2. The crusher hammer structure with connecting anti-loosening component as described in claim 1, characterized in that, The fastening mechanism (105) includes a first sleeve (1) and a second sleeve (11) detachably mounted on both sides of the bottom of the breaker head (104). A first retaining ring (12) and a second retaining ring (13) are integrally formed on both sides of the first sleeve (1) and the second sleeve (11). A ring-shaped groove (14) is provided on the outer side of the first retaining ring (12) and the second retaining ring (13). A first movable ring is movably engaged on the outer side of the first sleeve (1) and the second sleeve (11). (15) and the second moving ring (16), the first moving ring (15) and the second moving ring (16) are respectively provided with a ring-shaped distribution of a locking rod (17) and a fastening rod (18). The locking rod (17) and the first moving ring (15) are fixedly connected. The fastening rod (18) rotates through the second moving ring (16). The locking rod (17) has a threaded groove (19) inside. The fastening rod (18) has a threaded strip (191) on the outside that cooperates with the threaded groove (19).

3. The crusher hammer structure with connecting anti-loosening component as described in claim 2, characterized in that, The limiting mechanism (106) includes a cavity (2), and the cavity (2) is equipped with symmetrically distributed limiting plates (21). A movable rod (22) is fixedly installed on the outer side of the limiting plate (21). The movable rod (22) passes through the first moving ring (15) and the second moving ring (16). The limiting plate (21) and the inner wall of the cavity (2) are fixedly connected by a spring (23). The spring (23) is in a compressed state. The outer sides of the first sleeve (1) and the second sleeve (11) are both provided with grooves (24). The limiting plate (21) and the grooves (24) are used in conjunction.

4. The crusher hammer structure with connecting anti-loosening component as described in claim 3, characterized in that, The limiting plate (21) is fixed with symmetrically distributed stabilizing rods (3), which pass through the first moving ring (15) and the second moving ring (16).

5. The crusher hammer structure with connecting anti-loosening component as described in claim 4, characterized in that, The inner walls of the first moving ring (15) and the second moving ring (16) are provided with symmetrically distributed slots (4), and the limiting plate (21) and the slots (4) are used in conjunction.

6. The crusher hammer structure with connecting anti-loosening component as described in claim 2, characterized in that, The rotor disk (103) has multiple sets of annularly distributed circular holes (5) on its outer side, and the clamping rod (17), fastening rod (18) and circular holes (5) are used in conjunction.