Driving device of roller type sand making machine

Abstract

The utility model relates to a driving device of a roller type sand making machine, which is used for driving a grinding roller device of the roller type sand making machine to rotate circumferentially and comprises a rotating shaft part, a power part and a grinding roller mounting shaft, the rotating shaft part comprises a fixed vertical shaft and a rotating shaft; the fixed vertical shaft is fixedly connected with a main body of the roller type sand making machine, and the rotating shaft is in sliding fit connection with the fixed vertical shaft in the axial direction; the upper end of the rotating shaft is fixedly connected with the grinding roller mounting shaft, and the lower end of the rotating shaft is driven by the power part; and the pressure maintaining device is fixedly arranged on the fixed vertical shaft and is used for driving the grinding roller mounting shaft and the grinding roller device to move along the axial direction, and the pressure maintaining device has the advantages of high stability and low energy consumption.

Description

Technical Field

[0001] The utility model relates to the technical field of sand making equipment, in particular to a driving device of a roller sand making machine. Background Art

[0002] Sand making machine is a kind of equipment widely used in medium and fine crushing of ores and rocks with medium hardness or below in sand making, mineral processing, cement, metallurgy, chemical industry, building materials and other industrial sectors. It usually includes structures such as fixed rollers, movable rollers, and driving devices. A crushing chamber is formed between the fixed rollers and the movable rollers. When crushing materials, the materials enter the crushing chamber and are crushed into preset specifications under the action of the fixed rollers and movable rollers.

[0003] The driving device of the existing sand making machine usually includes a rotating shaft and a power unit. The grinding roller device is installed at the upper end of the rotating shaft. During operation, the power unit drives the rotating shaft to rotate, thereby driving the grinding roller device to rotate. However, since the grinding roller device has a certain weight, when the diameter of the rotating shaft is small, it is easy to affect the installation stability of the grinding roller device. When the diameter of the overall operating structure of the rotating shaft is too large, the counterweight of the rotating shaft will be increased, and the equipment will be underpowered, which will also increase the energy consumption of the equipment.

[0004] Therefore, it is urgent for technicians in this field to provide a sand making machine with high stability and low energy consumption. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the defects in the prior art, thereby providing a driving device for a roller sand making machine.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A driving device for a roller sand making machine, used for driving the grinding roller device of the roller sand making machine to rotate circumferentially, comprising a rotating shaft portion, a power portion and a grinding roller mounting shaft; the rotating shaft portion comprises a fixed vertical shaft and a rotating shaft; the fixed vertical shaft is fixedly connected to the main body of the roller sand making machine, and the rotating shaft is axially slidingly connected to the fixed vertical shaft; the upper end of the rotating shaft is fixedly connected to the grinding roller mounting shaft, and the lower end of the rotating shaft is driven by the power portion; and also includes a pressure maintaining device fixedly arranged on the fixed vertical shaft, and the pressure maintaining device is used to drive the grinding roller mounting shaft and the grinding roller device to move axially.

[0008] Preferably, an inner copper sleeve is provided between the fixed vertical shaft and the rotating shaft; the inner wall surface of the inner copper sleeve abuts against the fixed vertical shaft, and the outer wall surface abuts against the rotating shaft.

[0009] Preferably, the upper end of the rotating shaft is fixedly connected to the grinding roller mounting shaft via an expansion sleeve; the expansion sleeve is detachably mounted on the upper end of the rotating shaft, and the inner wall surface of the expansion sleeve is tightly expanded and abutted against the outer wall surface of the grinding roller mounting shaft.

[0010] Preferably, the power unit includes a transmission gear set and a power source for driving the transmission gear set to engage and transmit; the transmission gear set includes a driving bevel gear and a driven bevel gear; the driving bevel gear is driven by the power source, and the driven bevel gear is fixed to the lower end of the rotating shaft.

[0011] Preferably, the driven bevel gear has a greater number of teeth than the driving bevel gear.

[0012] Preferably, the pressure-maintaining device comprises a telescopic end and a fixed end which are arranged opposite to each other; the telescopic end is fixedly connected to the grinding roller mounting shaft; a guide groove is provided at the upper end of the fixed vertical shaft, and the outer wall surface of the telescopic end abuts against the inner wall surface of the guide groove.

[0013] Preferably, the pressure-maintaining device includes a piston rod; the driving device also includes a displacement sensor for detecting the displacement distance of the piston rod; and the displacement sensor is connected to the pressure-maintaining device.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The driving device of a roller sand making machine provided in the above technical solution divides the rotating shaft into a fixed vertical shaft and a rotating shaft that slide relative to each other, and the rotating shaft is used to connect the power unit and the grinding roller installation shaft, so that the power unit only needs to drive the rotating shaft during rotation, and the rotating shaft and the fixed vertical shaft can support the grinding roller device at the same time, which can not only ensure the supporting effect of the grinding roller, but also enable the power unit to drive the grinding roller device to rotate with less energy consumption, so that the device has the advantages of high stability and low energy consumption. In addition, the pressure-maintaining device is arranged on the fixed vertical shaft, which can realize the axial adjustment of the grinding roller device without increasing the energy consumption of the power unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a structural diagram of one implementation of the utility model.

[0018] Figure 2 for Figure 1Schematic diagram of the structure of the transfer shaft.

[0019] Description of reference numerals:

[0020] 1. Main body; 3. Grinding roller device; 40. Rotating shaft; 405. Fixed vertical shaft; 4051. Guide groove; 406. Rotating shaft; 407. Inner copper sleeve; 408. Expansion sleeve; 41. Power unit; 412. Transmission gear set; 4121. Active bevel gear; 4122. Driven bevel gear; 42. Grinding roller mounting shaft; 5. Pressure holding device; 51. Telescopic end; 52. Fixed end; 53. Piston rod; 10. Displacement sensor. DETAILED DESCRIPTION

[0021] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] See also Figure 1 and Figure 2 The embodiment of the utility model provides a driving device of a roller sand making machine, which is used to drive the grinding roller device 3 of the roller sand making machine to rotate circumferentially, and includes a rotating shaft part 40, a power part 41 and a grinding roller mounting shaft 42.

[0025] Specifically, the rotating shaft 40 includes a fixed vertical shaft 405 and a rotating shaft 406; the fixed vertical shaft 405 is fixedly connected to the main body 1 of the roller sand making machine, and the rotating shaft 406 is axially slidingly connected to the fixed vertical shaft 405; the upper end of the rotating shaft 406 is fixedly connected to the grinding roller installation shaft 42, and the lower end of the rotating shaft 406 is driven by the power unit 41. By dividing the rotating shaft 40 into a relatively sliding fixed vertical shaft 405 and a rotating shaft 406, the rotating shaft 406 is used to connect the power unit 41 and the grinding roller installation shaft 42, so that the power unit 41 only needs to drive the rotating shaft 406 during the rotation process, and the rotating shaft 406 and the fixed vertical shaft 405 can simultaneously support the grinding roller device 3, which can not only ensure the supporting effect of the grinding roller, but also enable the power unit 41 to drive the grinding roller device 3 to rotate and run quickly with less energy consumption, thereby increasing the crushing efficiency, so that the device has the advantages of high stability and low energy consumption.

[0026] Furthermore, a pressure-maintaining device 5 is fixedly arranged on the fixed vertical shaft 405, and the pressure-maintaining device has a telescopic end 51 and a fixed end 52 that are relatively arranged, and the upper end of the telescopic end 51 is connected to the grinding roller mounting shaft 42, so that the pressure-maintaining device 5 is used to drive the grinding roller mounting shaft 42 and the grinding roller device 3 to move axially, thereby being able to drive the grinding roller device 3 to move axially without increasing the energy consumption of the power unit 41 of the equipment.

[0027] See also Figure 2 In order to facilitate relative sliding between the fixed vertical shaft 405 and the rotating shaft 406, a sliding bearing is provided between the fixed vertical shaft 405 and the rotating shaft 406. Specifically, the sliding bearing is provided as an inner copper sleeve 407; the inner wall surface of the inner copper sleeve 407 abuts against the fixed vertical shaft 405, and the outer wall surface abuts against the rotating shaft 406.

[0028] Furthermore, in order to facilitate the stable connection between the rotating shaft 406 and the grinding roller mounting shaft 42, the upper end of the rotating shaft 406 is fixedly connected to the grinding roller mounting shaft 42 via an expansion sleeve 408; the expansion sleeve 408 is detachably installed on the upper end of the rotating shaft 406, and the inner wall surface of the expansion sleeve 408 is expanded and tightly pressed against the outer wall surface of the grinding roller mounting shaft 42.

[0029] See also Figure 1 and Figure 2 In order to increase the stability of transmission, in this embodiment, the power unit 41 includes a transmission gear set 412 and a power source for driving the transmission gear set 412 to engage in transmission; the transmission gear set 412 includes a driving bevel gear 4121 and a driven bevel gear 4122; the driving bevel gear 4121 is driven by the power source, and the driven bevel gear 4122 is fixed to the lower end of the rotating shaft 406.

[0030] Furthermore, the number of teeth of the driven bevel gear 4122 is greater than that of the driving bevel gear 4121 .

[0031] Furthermore, in order to achieve stable extension and retraction of the telescopic end 51 and drive the grinding roller mounting shaft 42 to move stably, a guide groove 4051 is provided on the upper end of the fixed vertical shaft 405, and the outer wall surface of the telescopic end 51 abuts against the inner wall surface of the guide groove 4051.

[0032] See also Figure 2 In order to achieve precise adjustment of the pressure maintaining device 5 , in the present embodiment, the pressure maintaining device 5 is configured as a piston cylinder, specifically including a piston rod 53 . The pressure maintaining device 5 is connected to a displacement sensor 10 for detecting the displacement of the piston rod 53 .

[0033] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A driving device for a roller sand making machine, used for driving a grinding roller device (3) of the roller sand making machine to rotate circumferentially, characterized in that: It comprises a rotating shaft part (40), a power part (41) and a grinding roller mounting shaft (42); The rotating shaft portion (40) includes a fixed vertical shaft (405) and a rotating shaft (406); The fixed vertical shaft (405) is fixedly connected to the main body (1) of the roller sand making machine, and the rotating shaft (406) is connected to the fixed vertical shaft (405) in an axially sliding manner; The upper end of the rotating shaft (406) is fixedly connected to the grinding roller mounting shaft (42), and the lower end of the rotating shaft (406) is driven by the power unit (41); It also includes a pressure-maintaining device (5) fixedly mounted on the fixed vertical shaft (405), and the pressure-maintaining device (5) is used to drive the grinding roller mounting shaft (42) and the grinding roller device (3) to move in the axial direction.

2. The driving device of a roller sand making machine according to claim 1, characterized in that: An inner copper sleeve (407) is provided between the fixed vertical shaft (405) and the rotating shaft (406); The inner wall surface of the inner copper sleeve (407) abuts against the fixed vertical shaft (405), and the outer wall surface abuts against the rotating shaft (406).

3. The driving device of a roller sand making machine according to claim 1, characterized in that: The upper end of the rotating shaft (406) is fixedly connected to the grinding roller mounting shaft (42) via an expansion sleeve (408); The expansion sleeve (408) is detachably mounted on the upper end of the rotating shaft (406), and the inner wall surface of the expansion sleeve (408) is tightly expanded and abutted against the outer wall surface of the grinding roller mounting shaft (42).

4. A driving device for a roller sand making machine according to any one of claims 1 to 3, characterized in that: The power unit (41) comprises a transmission gear set (412) and a power source for driving the transmission gear set (412) to mesh and transmit; The transmission gear set (412) comprises a driving bevel gear (4121) and a driven bevel gear (4122); The active bevel gear (4121) is driven by the power source, and the driven bevel gear (4122) is fixed to the lower end of the rotating shaft (406).

5. The driving device of a roller sand making machine according to claim 4, characterized in that: The driven bevel gear (4122) has a greater number of teeth than the driving bevel gear (4121).

6. The driving device of a roller sand making machine according to claim 1, characterized in that: The pressure-maintaining device (5) comprises a telescopic end (51) and a fixed end (52) which are arranged opposite to each other; The telescopic end (51) is fixedly connected to the grinding roller mounting shaft (42); A guide groove (4051) is provided at the upper end of the fixed vertical shaft (405), and the outer wall surface of the telescopic end (51) abuts against the inner wall surface of the guide groove (4051).

7. The driving device of a roller sand making machine according to claim 6, characterized in that: The pressure maintaining device (5) comprises a piston rod (53); The driving device also includes a displacement sensor (10) for detecting the displacement distance of the piston rod (53); The displacement sensor (10) is connected to the pressure maintaining device (5).

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