Multi-cylinder hydraulic cone crusher lower machine body inner hole heating device

Abstract

The utility model relates to the technical field of mine crushing, in particular to a multi-cylinder hydraulic cone crusher lower machine body inner hole heating device which comprises a heating device body, the heating device body can be inserted into an inner hole of a multi-cylinder hydraulic cone crusher lower machine body, and the heating device body comprises a heating body, a fixing plate and an anti-explosion head. The heating body is arranged on one face of the fixing plate, the anti-explosion head is arranged on the other face of the fixing plate, a power line for supplying power to the heating body penetrates through the heating body, the heating device body comprising the heating body, the fixing plate and the anti-explosion head is arranged, the heating device body can be inserted into the inner hole of the lower machine body of the multi-cylinder hydraulic cone crusher, and therefore the whole inner hole of the lower machine body is evenly heated; when the main shaft is installed, the main shaft only needs to be placed in according to the preset depth, when the temperature of the whole part is reduced to the normal temperature, the main shaft can be completely attached to the lower machine shell, and the part is prevented from being damaged due to external force.

Description

Technical Field

[0001] The utility model relates to the technical field of mine crushing, in particular to a multi-cylinder hydraulic cone crusher lower body bore heating device. Background Art

[0002] Multi-cylinder hydraulic cone crusher is a typical crushing equipment for medium and fine crushing of hard materials. It is developed on the basis of spring cone crusher, and its basic structure is similar to spring cone crusher. It is used in mining, metallurgy, construction, chemical industry, electric power, transportation and other industries.

[0003] The main shaft and the lower body of the multi-cylinder hydraulic cone crusher are installed with interference fit, but some manufacturers often use a press to force the main shaft into the inner hole of the lower body during installation. This method is a violent operation, which will cause damage to the lower body and the main shaft surface, resulting in incomplete contact surface fitting, uneven force, and easy cracking of the lower body. Utility Model Content

[0004] In view of the above problems, the utility model provides a multi-cylinder hydraulic cone crusher inner hole heating device.

[0005] The adopted technical solution is a multi-cylinder hydraulic cone crusher inner hole heating device, comprising a heating device body, wherein the heating device body can be inserted into the inner hole of the multi-cylinder hydraulic cone crusher body;

[0006] The heating device body comprises a heating body, a fixing plate and an explosion-proof head;

[0007] The heating body is arranged on one side of the fixing plate;

[0008] The explosion-proof head is arranged on the other side of the fixing plate and passes through a power line for supplying power to the heating body.

[0009] Optionally, the heating body has a U-shaped structure.

[0010] Optionally, both ends of the heating body are detachably connected to the fixing plate.

[0011] Optionally, the vertical projection of the heating body is located within the vertical projection of the fixing plate.

[0012] Optionally, the fixing plate can fit with the top opening of the inner hole of the lower body of the multi-cylinder hydraulic cone crusher.

[0013] Optionally, a sealing disk is provided at the bottom of the inner hole of the lower body of the multi-cylinder hydraulic cone crusher.

[0014] The beneficial effects of the present utility model include at least one of the following:

[0015] 1. By setting a heating device body including a heating body, a fixing plate and an explosion-proof head, and the heating device body can be inserted into the inner hole of the lower body of the multi-cylinder hydraulic cone crusher, the inner hole of the lower body is evenly heated as a whole and the expansion amount is consistent. When the spindle is installed, it is only necessary to put the spindle in according to the pre-set depth. When the temperature of the entire component drops to normal temperature, the spindle and the lower casing will be completely fitted to avoid damage to the components due to external force.

[0016] 2. It solves the problem that when the existing main shaft and the lower body are installed, the main shaft is mostly forced into the inner hole of the lower body by a press, which causes damage to the surface of the lower body and the main shaft, resulting in incomplete contact surface fitting, uneven force, and easy cracking of the lower body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the inner hole of a multi-cylinder hydraulic cone crusher and the main body of a heating device;

[0018] Figure 2 It is a schematic diagram of the structure of the heating device body;

[0019] The accompanying drawings are as follows: 1 is a multi-cylinder hydraulic cone crusher body, 2 is a sealing disk, 3 is a heating device body, 4 is a heating body, 5 is a power cord, 6 is an explosion-proof head, 7 is a fixing plate, and 8 is an inner hole. DETAILED DESCRIPTION

[0020] The following describes the implementation of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0021] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0022] like Figure 1 and Figure 2 As shown, a multi-cylinder hydraulic cone crusher body inner hole heating device comprises a heating device body 3, wherein the heating device body 3 can be inserted into the inner hole 8 of the multi-cylinder hydraulic cone crusher body;

[0023] The heating device body 3 includes a heating body 4, a fixing plate 7 and an explosion-proof head 6;

[0024] The heating body 4 is arranged on one side of the fixing plate 7;

[0025] The explosion-proof head 6 is arranged on the other side of the fixing plate 7 and passes through a power line 5 for supplying power to the heating body 4 .

[0026] The purpose of this design is to set a heating device body including a heating body, a fixing plate and an explosion-proof head, and the heating device body can be inserted into the inner hole of the lower body of the multi-cylinder hydraulic cone crusher, so that the overall temperature of the inner hole of the lower body is uniform and the expansion amount is consistent. When the spindle is installed, it is only necessary to put the spindle in according to the pre-set depth. When the temperature of the entire component drops to the normal temperature, the spindle and the lower housing will be completely fitted to avoid damage to the components due to external forces. This solves the problem that when the existing spindle and the lower body are installed, most of the spindles are forced to be pressed into the inner hole of the lower body by a press, which causes damage to the surface of the lower body and the spindle, resulting in incomplete contact surface fitting, uneven force, and easy cracking of the lower body.

[0027] In this embodiment, a specific structure of a heating body 4 is provided, wherein the heating body 4 is in a U-shaped structure, and both ends of the heating body 4 are detachably connected to a fixing plate 7 .

[0028] The purpose of such design is that the U-shaped structure can better distribute heat evenly. At the same time, in actual use, the actual length of the inner hole 8 is measured first, and then a U-shaped heating body of matching length is installed through a detachable connecting structure. In this way, the length of the heating body is consistent with the depth of the inner hole to be heated. Therefore, when heating, the entire inner hole can be heated evenly, and the heat transferred is the same, ensuring that the expansion of the inner hole is also consistent; when the expansion is large enough to reach a suitable size, the main shaft installation process can be carried out.

[0029] At the same time, in this embodiment, the vertical projection of the heating body 4 is located within the vertical projection of the fixed plate 7, the fixed plate 7 can fit with the top opening of the inner hole 8 of the multi-cylinder hydraulic cone crusher, and a sealing disk 2 is provided at the bottom of the inner hole 8 of the multi-cylinder hydraulic cone crusher.

[0030] The purpose of such design is to play a role of heat preservation by setting a sealing plate at the bottom of the inner hole. When the power cord is energized, the U-shaped heating body will generate heat after passing through the explosion-proof head. After the main shaft is installed to a certain position, when the temperature of the entire component drops, the overall shrinkage of the lower body will be more uniform, and there will be no corresponding stress concentration in the casing, which can effectively avoid the situation where the lower body is cracked due to stress caused by assembly; secondly, this heating structure is more convenient and can be completed independently by two people. Compared with the traditional press-in installation, it saves a lot of manpower, material and financial resources.

[0031] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-cylinder hydraulic cone crusher inner hole heating device, comprising a heating device body (3), characterized in that: The heating device body (3) can be inserted into the inner hole (8) of the multi-cylinder hydraulic cone crusher body; The heating device body (3) comprises a heating body (4), a fixing plate (7) and an explosion-proof head (6); The heating body (4) is arranged on one side of the fixing plate (7); The explosion-proof head (6) is arranged on the other side of the fixing plate (7) and passes through a power line (5) for supplying power to the heating body (4).

2. The multi-cylinder hydraulic cone crusher inner hole heating device according to claim 1 is characterized in that: The heating body (4) has a U-shaped structure.

3. The multi-cylinder hydraulic cone crusher inner hole heating device according to claim 2 is characterized in that: Both ends of the heating body (4) are detachably connected to the fixing plate (7).

4. The multi-cylinder hydraulic cone crusher inner hole heating device according to claim 1 is characterized in that: The vertical projection of the heating body (4) is located within the vertical projection of the fixing plate (7).

5. The multi-cylinder hydraulic cone crusher inner hole heating device according to claim 1 is characterized in that: The fixing plate (7) can fit into the top opening of the inner hole (8) of the lower body of the multi-cylinder hydraulic cone crusher.

6. The multi-cylinder hydraulic cone crusher inner hole heating device according to claim 5 is characterized in that: A sealing disk (2) is provided at the bottom of the inner hole (8) of the lower body of the multi-cylinder hydraulic cone crusher.

Images