High-strength crusher jaw head
By optimizing the structure and lubrication system of the crusher jaw, the problems of easy wear and insufficient lubrication of traditional jaws have been solved, achieving efficient crushing and equipment stability, and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG YUANZHENGXING MASCH EQUIP CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-04-24
AI Technical Summary
Traditional crusher jaws are prone to wear and breakage during high-intensity operations, and the imperfect lubrication system design leads to frequent equipment shutdowns and shortened service life.
The bearing rings, hammer handles, and main jaw plates are made of high-strength alloy steel, and the lubrication system and structure are optimized by designing lubrication rings, vent grooves, discharge grooves, and limit strips to increase the material contact area and prevent displacement and wear.
It improves crushing efficiency, extends equipment life, reduces maintenance costs, and enhances equipment stability and wear resistance.
Smart Images
Figure CN224156906U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crusher technology, specifically to a high-strength crusher jaw, which is particularly suitable for high-strength crushing operations in industries such as mining and construction. Background Technology
[0002] The crusher jaw head is one of the core components of a crusher, and its performance directly affects the crushing efficiency and equipment lifespan. Traditional crusher jaw heads are prone to wear and breakage under prolonged high-intensity operation, leading to frequent downtime for maintenance and impacting production efficiency. Furthermore, the lubrication system design of traditional jaw heads is inadequate, making bearings susceptible to damage due to insufficient lubrication, further reducing the equipment's lifespan. Therefore, there is an urgent need for a high-strength, wear-resistant crusher jaw head with excellent lubrication performance to meet the demands of high-intensity crushing operations. Utility Model Content
[0003] The purpose of this invention is to provide a high-strength crusher jaw head, which improves the wear resistance, crushing efficiency and service life of the jaw head by optimizing the structural design and lubrication system, while also enhancing the stability of the equipment.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A high-strength crusher jaw includes a bearing collar, a hammer shank, and a main jaw plate. The bearing collar is located at one end of the hammer shank, and the main jaw plate is located at the rear side of the hammer shank. The bearing collar is characterized in that it is engaged with a drive bearing, and a lubricating oil ring is provided on the inner wall of the bearing collar. An upper baffle protrusion is provided at the connection between the bearing collar and the main jaw plate. The main jaw plate has multiple evenly distributed grooves inside.
[0006] Preferably, the hammer handle includes an exhaust groove, a discharge groove, a lower positioning hole, and a limiting strip. The discharge groove and the lower positioning hole are both fixedly arranged on the side wall of the hammer handle. Multiple evenly distributed exhaust grooves are arranged on the rear side of the hammer handle, and a limiting strip is arranged on the bottom of the hammer handle.
[0007] Preferably, a mating hammer ring is provided at the top position of the upper end of the bearing collar.
[0008] Preferably, the lubricating oil ring includes a dustproof retaining ring, an inner sealing ring, and oil injection holes. The dustproof retaining ring is fitted at the outermost position of the lubricating oil ring, and the inner sealing ring is fitted on the inner side of the dustproof retaining ring. Multiple evenly distributed oil injection holes are provided between the inner sealing ring and the dustproof retaining ring.
[0009] Preferably, a lower discharge trough is provided at the lower end of the main jaw plate.
[0010] Compared with the prior art, this utility model provides a high-strength crusher jaw head, which has the following beneficial effects:
[0011] 1. Improve crushing efficiency: The multiple evenly distributed grooves inside the main jaw plate increase the contact area between the material and the jaw plate, significantly improving crushing efficiency.
[0012] 2. Extended service life: The design of the lubricating oil ring effectively reduces bearing wear and extends the service life of the bearing and jaw head.
[0013] 3. Enhanced equipment stability: The limiting strip at the bottom of the hammer handle and the matching hammer ring at the upper end of the bearing collar effectively prevent the hammer handle and bearing collar from shifting or loosening during operation, thus improving the stability of the equipment.
[0014] 4. Reduced maintenance costs: The design of the exhaust duct and discharge duct effectively reduces the wear and tear of dust and debris on the equipment, thus lowering the maintenance costs. Attached Figure Description
[0015] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model;
[0016] Figure 2 This is a schematic diagram of the rear structure in a specific embodiment of the present utility model;
[0017] Figure 3 This is a schematic diagram of the component structure of the lubricating oil ring in a specific embodiment of this utility model.
[0018] In the diagram: 1. Bearing collar; 2. Hammer handle; 3. Upper stop protrusion; 4. Main jaw plate; 5. Lower discharge groove; 101. Exhaust groove; 102. Discharge groove; 103. Lower positioning hole; 104. Limiting strip; 201. Matching hammer ring; 301. Lubricating oil ring; 401. Dustproof retaining ring; 402. Inner sealing ring; 403. Oil injection hole. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0021] Example 1:
[0022] Reference Figure 1-3 A high-strength crusher jaw includes a bearing collar 1, a hammer shank 2, and a main jaw plate 4. The bearing collar 1 is located at one end of the hammer shank 2, and the main jaw plate 4 is located at the rear of the hammer shank 2. The bearing collar 1 is internally engaged with a drive bearing, and a lubricating oil ring 301 is provided on the inner wall of the bearing collar 1. An upper baffle protrusion 3 is provided at the connection point between the bearing collar 1 and the main jaw plate 4. The main jaw plate 4 has multiple evenly distributed grooves inside. Because the main jaw plate 4 has multiple evenly distributed grooves, the contact area between the material and the jaw plate is effectively increased, thereby improving crushing efficiency. At the same time, the lubricating oil ring 301 on the inner wall of the bearing collar 1 effectively reduces bearing wear and extends bearing service life. Additionally, the exhaust groove 101 and discharge groove 102 on the hammer shank 2 effectively discharge dust and debris generated during the crushing process, reducing wear on the equipment.
[0023] Furthermore, the hammer handle 2 includes an exhaust groove 101, a discharge groove 102, a lower positioning hole 103, and a limiting strip 104. The discharge groove 102 and the lower positioning hole 103 are both fixedly disposed on the side wall of the hammer handle 2. Multiple evenly distributed exhaust grooves 101 are disposed on the rear side of the hammer handle 2, and a limiting strip 104 is disposed at the bottom of the hammer handle 2. The limiting strip 104 at the bottom of the hammer handle 2 effectively prevents the hammer handle 2 from shifting during operation, improving the stability of the equipment. Simultaneously, the mating hammer ring 201 disposed at the top of the upper end of the bearing collar 1 effectively prevents the bearing collar 1 from loosening during operation, further improving the stability of the equipment.
[0024] Furthermore, a mating hammer ring 201 is provided at the top position of the upper end of the bearing collar 1.
[0025] Furthermore, a lower discharge chute 5 is provided at the lower end of the main jaw plate 4. The multiple evenly distributed grooves inside the main jaw plate 4 help improve crushing efficiency, and the lower discharge chute 5 facilitates the smooth discharge of materials.
[0026] Furthermore, the lubricating oil ring 301 includes a dustproof retaining ring 401, an inner sealing ring 402, and oil injection holes 403. The dustproof retaining ring 401 is fitted at the outermost position of the lubricating oil ring 301, and the inner sealing ring 402 is fitted inside the dustproof retaining ring 401. Multiple evenly distributed oil injection holes 403 are provided between the inner sealing ring 402 and the dustproof retaining ring 401. Lubricating oil is injected into the lubricating oil ring 301 through the oil injection holes 403 to ensure smooth operation of the bearing.
[0027] Example 2:
[0028] Reference Figure 1-3 Similar to Example 1, but further, the bearing collar 1, hammer handle 2 and main jaw plate 4 are all made of high-strength alloy steel to ensure their durability and stability in high-intensity crushing operations.
[0029] The processing and assembly steps of this device are as follows:
[0030] Manufacturing of bearing collar 1: First, bearing collar 1 is manufactured using precision casting. Then, a mounting groove for the lubricating oil ring 301 is machined into its inner wall. Lubricating oil is injected into the lubrication ring 301 through the oil injection hole 403 to ensure smooth operation of the bearing.
[0031] Manufacturing of hammer handle 2: Hammer handle 2 is manufactured through forging process to ensure its strength and toughness. The venting groove 101, the discharge groove 102, the lower positioning hole 103 and the limit clip 104 are precisely machined by CNC machine tool.
[0032] Manufacturing of the main jaw plate 4: The main jaw plate 4 is heat-treated to improve its hardness and wear resistance, and the internal grooves are machined by milling. The lower discharge chute 5 is manufactured by stamping to ensure smooth material discharge.
[0033] During assembly, the bearing collar 1 is fixed to one end of the hammer handle 2 by welding or bolting; the main jaw plate 4 is fixed to the rear side of the hammer handle 2 by bolting to ensure that the upper stop protrusion 3 and the bearing collar 1 fit tightly; finally, the lubricating oil ring 301 is installed on the inner wall of the bearing collar 1 to ensure the sealing of the dustproof retaining ring 401 and the inner sealing ring 402.
[0034] The high-strength crusher jaw provided in this embodiment significantly improves crushing efficiency, extends equipment service life, and enhances equipment stability through optimized structural design and manufacturing process, making it suitable for various high-strength crushing operations.
[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A high-strength crusher jaw, comprising a bearing collar, a hammer shank, and a main jaw plate, wherein a bearing collar is disposed at one end of the hammer shank, and a main jaw plate is disposed at the rear side of the hammer shank, characterized in that, The bearing collar is engaged with the drive bearing, and a lubricating oil ring is provided on the inner wall of the bearing collar. An upper stop protrusion is provided at the connection position between the bearing collar and the main jaw plate. The main jaw plate has multiple evenly distributed grooves inside.
2. The high-strength crusher jaw head according to claim 1, characterized in that, The hammer handle includes an exhaust groove, a discharge groove, a lower positioning hole, and a limiting strip. The discharge groove and the lower positioning hole are both fixedly arranged on the side wall of the hammer handle. Multiple evenly distributed exhaust grooves are arranged on the rear side of the hammer handle, and a limiting strip is arranged on the bottom of the hammer handle.
3. The high-strength crusher jaw head according to claim 1, characterized in that, A mating hammer ring is provided at the top position of the upper end of the bearing collar.
4. A high-strength crusher jaw head according to claim 1, characterized in that, The lubricating oil ring includes a dustproof retaining ring, an inner sealing ring, and oil injection holes. The dustproof retaining ring is fitted at the outermost position of the lubricating oil ring, and the inner sealing ring is fitted on the inner side of the dustproof retaining ring. Multiple evenly distributed oil injection holes are provided between the inner sealing ring and the dustproof retaining ring.
5. A high-strength crusher jaw head according to claim 1, characterized in that, A lower discharge trough is provided at the lower end of the main jaw plate.