Jaw crusher protective cover and jaw crusher
By designing a protective cover body on the jaw crusher that coordinates rotating connecting parts and drive parts, the problem of limited maintenance space is solved, enabling rapid belt replacement and maintenance, and reducing maintenance costs and time.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SANY HEAVY EQUIP CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-15
AI Technical Summary
The existing protective cover of the jaw crusher has a small space for maintenance, resulting in long maintenance time, high cost, and difficulty in quickly replacing the belt.
Design a protective cover for a jaw crusher, which uses a combination of a rotating connector and a drive component to allow the main body of the protective cover to rotate around the rotating connector. The drive component supports the cover to expose the belt, simplifying the maintenance process. The cover is driven by a hydraulic or pneumatic rod to reduce space and time requirements.
This significantly reduces space and time requirements during maintenance, provides more operating space, simplifies belt replacement and maintenance processes, and reduces labor and time costs.
Smart Images

Figure CN224236918U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of jaw crushers, and more specifically, to a jaw crusher protective cover and a jaw crusher. Background Technology
[0002] In existing jaw crushers, the working process involves a drive motor rotating a pulley, which in turn drives an eccentric shaft, causing the moving jaw to oscillate periodically. This periodic change in the crushing chamber compresses the material within. Protective measures are needed for the moving parts, pulleys and flywheels, to prevent damage from external materials or ejected material from the belts and equipment, thus avoiding injury to personnel and equipment. Protective covers for the pulleys and flywheels are required, including inspection and observation doors. The observation doors allow for observation of the internal structure of the pulleys and flywheels to determine if maintenance is necessary. The inspection doors ensure that maintenance personnel can perform repairs. However, in some customer sites, limited space or inconvenient placement of these inspection doors increases maintenance time and labor costs.
[0003] Therefore, a jaw crusher protective cover and jaw crusher that can reduce workers' maintenance time, make belt replacement easier, and open more easily has become an urgent problem to be solved. Utility Model Content
[0004] Therefore, the first objective of this utility model is to provide a protective cover for a jaw crusher.
[0005] The second objective of this invention is to provide a jaw crusher.
[0006] In view of the above, the first aspect of the present invention provides a protective cover for a jaw crusher, which includes a belt. The protective cover includes: a rotating connector; a back plate, one end of which is rotatably mounted on the rotating connector; a protective cover body, one end of which is rotatably mounted on the rotating connector, the protective cover body and the back plate enclosing a placement space, and the belt is placed within the placement space; and a driving member, one end of which is mounted on the back plate and the other end of which is mounted on the protective cover body, the driving member being able to drive the other end of the protective cover body away from or towards the back plate.
[0007] In this design, the jaw crusher protective cover includes: a rotating connector; a back plate, one end of which is rotatably mounted on the rotating connector; a protective cover body, one end of which is rotatably mounted on the rotating connector, the protective cover body and the back plate enclosing a placement space within which the belt is placed; and a drive unit, one end of which is mounted on the back plate and the other end of which is mounted on the protective cover body, capable of driving the other end of the protective cover body away from or towards the back plate. Through the cooperation of the rotating connector and the drive unit, the protective cover body can rotate around the rotating connector without requiring separate fixing or tooling. When repairing the belt inside the protective cover, the drive unit supports the protective cover body, exposing the belt in the placement space to the outside, allowing for belt replacement or repair. Because of the drive unit, no additional hoisting is needed. This solution significantly reduces the space and time required for maintenance, as hoisting and other tooling require considerable space and time. Meanwhile, this solution allows the entire protective cover to be opened, rather than just a small door on the main body of the protective cover, thus providing workers with more operating space during maintenance.
[0008] In some possible designs, the rotating connector includes: a rotating shaft; a first connector, one end of which is rotatably connected to the rotating shaft and the other end of which is fixedly connected to the back plate; and a second connector, one end of which is rotatably connected to the rotating shaft and the other end of which is fixedly connected to the protective cover body.
[0009] In this design, the rotating connector includes: a rotating shaft; a first connector, one end of which is rotatably connected to the rotating shaft, and the other end of which is fixedly connected to the back plate; and a second connector, one end of which is rotatably connected to the rotating shaft, and the other end of which is fixedly connected to the protective cover body. By using the rotating connector, one end of the back plate and one end of the protective cover body are connected together, thus fixing one end of the protective cover body and allowing the protective cover body to rotate around the rotating shaft. The rotating shaft is located on the upper side of the protective cover body and the back plate, allowing the protective cover body to rotate upwards.
[0010] In some possible designs, the drive element includes a hydraulic rod or a pneumatic rod.
[0011] In this design, the drive components include hydraulic or pneumatic rods. Due to the significant weight of the jaw crusher's protective cover, hydraulic or pneumatic rods with greater power are preferred. This ensures that the protective cover will not slam down when in the open position.
[0012] In some possible designs, the number of drive components is at least one.
[0013] In this design, by setting the number of drive components to at least one, it can be ensured that the protective cover body will not fall downwards when opened. At least two drive components can be located in different directions on the belt.
[0014] In some possible designs, the back panel includes U-shaped holes.
[0015] In this design, the backplate includes a U-shaped hole, which is used to connect the input shaft of the belt to the outside.
[0016] In some possible designs, the jaw crusher guard also includes a fixing structure that can secure the other end of the back plate to the other end of the guard body.
[0017] In this design, the back plate and the other end of the protective cover body are connected together by a fixed structure, thereby ensuring that the protective cover body and the back plate will not separate due to the vibration of the jaw crusher during use.
[0018] In some possible designs, the number of fixed structures is at least one.
[0019] In this design, the number of fixed structures is at least one. By setting at least two fixed structures, it is further ensured that the main body of the protective cover will not separate from the back plate due to the vibration of the jaw crusher.
[0020] In some possible designs, the back plate is provided with at least one first fixing hole, corresponding to the fixing structure; the main body of the protective cover is provided with at least one second fixing hole, corresponding to the fixing structure; the fixing structure includes bolts and nuts, the bolts can pass through the first fixing hole and the second fixing hole, and cooperate with the nuts to fix the main body of the protective cover and the back plate.
[0021] In this design, the fixing structure includes bolts and nuts. The bolts can pass through the first fixing hole and the second fixing hole, and cooperate with the nuts to fix the protective cover body and the back plate. The bolts and nuts are used to fix the back plate and the protective cover body to avoid the impact of the jaw crusher due to vibration, and the fixing structure is not easy to fall off.
[0022] In some possible designs, the main body of the protective shield includes at least one observation door.
[0023] In this design, the main body of the protective cover includes at least one observation door, through which workers can observe the conveyor belt in the placement space. Multiple observation doors can be provided as needed.
[0024] According to a second aspect of the present invention, a jaw crusher is also provided, comprising: a jaw crusher protective cover as described in the first aspect above.
[0025] In this technical solution, the jaw crusher includes: a jaw crusher protective cover as described in the first aspect above, and therefore has all the technical effects of the jaw crusher protective cover in the first aspect.
[0026] Additional aspects and advantages of this invention will become apparent in the description that follows, or may be learned by practice of this invention. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or related technologies, the drawings used in the description of the embodiments or related technologies 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 the structures shown in these drawings without creative effort.
[0028] Figure 1 This is one of the schematic diagrams of a jaw crusher protective cover according to an embodiment of the present invention;
[0029] Figure 2 This is a second schematic diagram of a jaw crusher protective cover according to an embodiment of this utility model;
[0030] Figure 3 This utility model provides Figure 2 An enlarged view of point A in the diagram;
[0031] Figure 4 This is the third schematic diagram of a jaw crusher protective cover according to an embodiment of this utility model;
[0032] Figure 5 This utility model provides Figure 4 Enlarged diagram of point B in the diagram;
[0033] Figure 6 This is a schematic diagram of a rotating connector according to an embodiment of the present invention;
[0034] Figure 7 This is the fourth schematic diagram of a jaw crusher protective cover according to an embodiment of this utility model;
[0035] Figure 8 This is the fifth schematic diagram of a jaw crusher protective cover according to an embodiment of this utility model;
[0036] Figure 9 This utility model provides Figure 8 An enlarged diagram of point C in the diagram.
[0037] in, Figures 1 to 9 The correspondence between the reference numerals and the component names is as follows:
[0038] 1 Jaw crusher protective cover, 10 Rotary connecting piece, 101 Rotary shaft, 102 First connecting piece, 103 Second connecting piece, 104 Pin, 105 Baffle, 106 Bushing, 11 Back plate, 111 U-shaped hole, 112 First fixing hole, 12 Protective cover body, 121 Second fixing hole, 122 Observation door, 13 Drive component, 131 Hydraulic rod, 132 Pneumatic rod, 14 Fixing structure, 141 Bolt, 142 Nut, 2 Belt, 3 Placement space. Detailed Implementation
[0039] 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.
[0040] An embodiment of the first aspect of this utility model provides a protective cover for a jaw crusher, such as Figure 1 , Figure 6 and Figure 7 As shown, a jaw crusher protective cover 1 is used for a jaw crusher, which includes a belt 2. The jaw crusher protective cover 1 includes: a rotating connector 10; a back plate 11, one end of which is rotatably mounted on the rotating connector 10; a protective cover body 12, one end of which is rotatably mounted on the rotating connector 10, the protective cover body 12 and the back plate 11 enclosing a placement space 3, and the belt 2 is placed in the placement space 3; and a driving member 13, one end of which is mounted on the back plate 11 and the other end of which is mounted on the protective cover body 12, the driving member 13 being able to drive the other end of the protective cover body 12 away from or towards the back plate 11.
[0041] In this design, the jaw crusher protective cover 1 includes: a rotating connector 10; a back plate 11, one end of which is rotatably mounted on the rotating connector 10; a protective cover body 12, one end of which is rotatably mounted on the rotating connector 10, the protective cover body 12 and the back plate 11 enclosing a placement space 3, within which the belt 2 is placed; and a drive member 13, one end of which is mounted on the back plate 11 and the other end of which is mounted on the protective cover body 12, capable of driving the other end of the protective cover body 12 away from or towards the back plate 11. Through the cooperation of the rotating connector 10 and the drive member 13, the protective cover body 12 can rotate around the rotating connector 10 without requiring separate fixing or tooling. When repairing the belt 2 inside the protective cover, the drive member 13 supports the protective cover body 12, exposing the belt 2 in the placement space 3, thus facilitating replacement or repair. Because of the driving component 13, there is no need for additional hoisting equipment. This solution significantly reduces the space and time required for hoisting and other tooling during maintenance. Furthermore, this solution allows the entire protective cover body 12 to be opened, rather than just a small door, thus providing workers with more operating space during maintenance.
[0042] In some possible designs, the rotating connector 10 includes: a rotating shaft 101; a first connector 102, one end of which is rotatably connected to the rotating shaft 101 and the other end of which is fixedly connected to the back plate 11; and a second connector 103, one end of which is rotatably connected to the rotating shaft 101 and the other end of which is fixedly connected to the protective cover body 12.
[0043] In this design, such as Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the rotating connector 10 includes: a rotating shaft 101; a first connector 102, one end of which is rotatably connected to the rotating shaft 101, and the other end of which is fixedly connected to the back plate 11; and a second connector 103, one end of which is rotatably connected to the rotating shaft 101, and the other end of which is fixedly connected to the protective cover body 12. By providing the rotating connector, one end of the back plate 11 and one end of the protective cover body 12 are connected together, so that one end of the protective cover body 12 is fixed, and the protective cover body 12 can rotate around the rotating shaft 101. The rotating shaft 101 is located on the upper side of the protective cover body 12 and the back plate 11, allowing the protective cover body 12 to rotate upwards.
[0044] In some possible designs, the drive element 13 includes a hydraulic rod 131 or a pneumatic rod 132.
[0045] In this design, such as Figure 1 As shown, the drive component 13 includes a hydraulic rod 131 or a pneumatic rod 132. Due to the large weight of the protective cover body 12 of the jaw crusher, the hydraulic rod 131 or pneumatic rod 132, which has greater power, is preferred. This ensures that the protective cover body 12 will not fall down when it is in the open state.
[0046] In some possible designs, the number of drive components 13 is at least one.
[0047] In this design, such as Figure 1 As shown, by setting the number of drive members 13 to at least two, it can be ensured that the protective cover body 12 will not fall when opened. The at least two drive members 13 can be located in different directions of the belt 2.
[0048] In some possible designs, the back panel 11 includes a U-shaped hole 111.
[0049] In this design, such as Figure 1 As shown, the back plate 11 includes a U-shaped hole 111, which is used to connect the input shaft of the belt 2 to the outside.
[0050] In some possible designs, such as Figure 8 and Figure 9 As shown, the jaw crusher protective cover 1 also includes a fixing structure 14, which can fix the other end of the back plate 11 and the other end of the protective cover body 12.
[0051] In this design, the back plate 11 and the other end of the protective cover body 12 are connected together by the fixing structure 14, thereby ensuring that the protective cover body 12 will not separate from the back plate 11 due to the vibration of the jaw crusher during use.
[0052] In some possible designs, the number of fixed structures 14 is at least one.
[0053] In this design, the number of fixing structures 14 is at least one. By setting at least two fixing structures 14, it is further ensured that the protective cover body 12 and the back plate 11 will separate due to the vibration of the jaw crusher.
[0054] In some possible designs, such as Figure 8 and Figure 9As shown, the back plate 11 is provided with at least one first fixing hole 112, which is provided corresponding to the fixing structure 14; the protective cover body 12 is provided with at least one second fixing hole 121, which is provided corresponding to the fixing structure 14; the fixing structure 14 includes a bolt 141 and a nut 142, the bolt 141 can pass through the first fixing hole 112 and the second fixing hole 121, and cooperate with the nut 142 to fix the protective cover body 12 and the back plate 11.
[0055] In this design, such as Figure 8 and Figure 9 As shown, the fixing structure 14 includes a bolt 141 and a nut 142. The bolt 141 can pass through the first fixing hole 112 and the second fixing hole 121, and cooperate with the nut 142 to fix the protective cover body 12 and the back plate 11. The cooperation of the bolt 141 and the nut 142 is used to fix the back plate 11 and the protective cover body 12, which can avoid the impact of the jaw crusher due to vibration. The fixing structure 14 is not easy to fall off.
[0056] In some possible designs, the protective cover body 12 includes at least one observation door 122.
[0057] In this design, such as Figure 1 and Figure 5 As shown, the protective cover body 12 includes at least one observation door 122, through which workers can observe the belt 2 in the placement space 3. Multiple observation doors 122 can be provided as needed.
[0058] This application enables rapid maintenance and repair when the pulley bolt 141, hook wedge key, or belt needs replacement, reducing labor and time costs. The protective cover body 12 protects the belt 2, preventing crushed material from falling into the rotating parts and preventing material from flying out of the rotating parts and causing injury to personnel or equipment. There are two drive components: a long pneumatic support rod and a short pneumatic support rod. The long pneumatic support rod is connected to the protective cover body 12 via a fixed seat and a fixed support, respectively. The long pneumatic support rod is hinged to the fixed seat using bolts and nuts, and connected to the fixed support via threads, as the end of the long pneumatic support rod uses a universal joint structure to connect threadedly to the fixed support. Similarly, the short pneumatic support rod is connected to the protective cover body 12 via fixed seats and fixed support, respectively. The protective cover body 12 is opened and closed using the long and short pneumatic support rods. A hinge assembly is located at the rear of the jaw crusher's protective cover for rotating the main body 12 of the protective cover. For example... Figure 6As shown, a fixing plate is welded to the main body 12 of the protective cover. The hinge rotating cylinder and the hinge tube are welded to the corresponding fixing plate. The fixing kit and the baffle 105 are welded to the hinge rotating cylinder. The bushing 106 is installed inside the hinge rotating cylinder to prevent wear of the pin 104. The hinges are connected by the pin 104. The main body 12 of the protective cover opens and closes as a whole through the pneumatic support rod and the hinge combination.
[0059] This application adopts a pulley protective cover that opens as a whole. The protective cover is opened and closed by a pneumatic or electric support rod, which enables quick and convenient replacement of pulley belts, saving customers labor and time costs.
[0060] The jaw crusher protective cover of this application can be opened as a whole, which facilitates the tightening of the bolts 141 and hook wedges inside the protective cover without having to disassemble and install the entire protective cover.
[0061] According to a second aspect of the present invention, a jaw crusher is also provided, comprising: a jaw crusher protective cover 1 as described in the first aspect above.
[0062] In this technical solution, the jaw crusher includes: the jaw crusher protective cover 1 as described in the first aspect above, and therefore has all the technical effects of the jaw crusher protective cover 1 in the first aspect.
[0063] Additional aspects and advantages of this invention will become apparent in the description that follows, or may be learned by practice of this invention.
[0064] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0065] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0066] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0067] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A protective cover for a jaw crusher, characterized in that, For use in a jaw crusher, the jaw crusher including a belt, the jaw crusher protective cover including: Rotating connector; A back plate, one end of which is rotatably mounted on the rotating connector; The protective cover body has one end rotatably mounted on the rotating connector, and the protective cover body and the back plate together enclose a placement space, with the belt disposed within the placement space; A driving component, one end of which is disposed on the back plate and the other end of which is disposed on the protective cover body, the driving component being capable of driving the other end of the protective cover body away from or close to the back plate.
2. The jaw crusher protective cover according to claim 1, characterized in that, The rotating connector includes: a rotating shaft; A first connector, one end of which is rotatably connected to the rotating shaft, and the other end of which is fixedly connected to the back plate; The second connector has one end rotatably connected to the rotating shaft and the other end fixedly connected to the protective cover body.
3. The jaw crusher protective cover according to claim 1, characterized in that, The driving component includes a hydraulic rod or a pneumatic rod.
4. The jaw crusher protective cover according to claim 1, characterized in that, The number of driving components is at least one.
5. The jaw crusher protective cover according to claim 1, characterized in that, The back plate includes U-shaped holes.
6. The jaw crusher protective cover according to any one of claims 1 to 5, characterized in that, It also includes a fixing structure that can fix the other end of the back plate and the other end of the protective cover body.
7. The jaw crusher protective cover according to claim 6, characterized in that, The number of fixed structures is at least one.
8. The jaw crusher protective cover according to claim 7, characterized in that, The back plate is provided with at least one first fixing hole, which corresponds to the fixing structure. The protective cover body is provided with at least one second fixing hole, which is provided corresponding to the fixing structure; The fixing structure includes bolts and nuts. The bolts can pass through the first fixing hole and the second fixing hole, and cooperate with the nuts to fix the protective cover body and the back plate.
9. The jaw crusher protective cover according to any one of claims 1 to 5, characterized in that, The main body of the protective cover includes at least one observation gate.
10. A jaw crusher, characterized in that, include: Jaw crusher protective cover as described in any one of claims 1 to 9.