Hydraulic motor chain tightening device of crusher

Abstract

The utility model relates to the technical field of transmission chain accessories, in particular to a hydraulic motor chain tightening device of a crusher, which comprises a chain tightening gear and an adjusting frame, a rotating shaft is coaxially connected onto the chain tightening gear, two ends of the rotating shaft are connected onto the adjusting frame, and a tightness adjusting cylinder is mounted in the center of the bottom of the adjusting frame; an axial connecting sleeve is arranged at the center axis of the chain tightening gear and connected to the outer wall of the rotating shaft through a fixing bolt. According to the chain tensioning device, the combination of the chain tensioning gear and the adjusting frame is adopted, so that the tensioning operation of the chain can be conveniently carried out. Particularly, through the tightness adjusting cylinder, the tightness of the chain can be accurately controlled, and the stable operation of the crusher is ensured; and the chain tightening gear is connected to the outer wall of the rotating shaft through a connecting sleeve and a fixing bolt, mounting or dismounting is convenient, the chain tightening gear of the corresponding model can be selected according to chain teeth of a transmission chain between the hydraulic motor and the pulverizer, and popularization is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission chain accessories, in particular to a hydraulic motor chain tightening device for a pulverizer. Background Art

[0002] The hydraulic motor chain tightening device of the pulverizer is a device used to adjust and fix the pulverizer chain. It is usually driven by a hydraulic motor and ensures the normal operation of the pulverizer by adjusting the tightness of the chain. This device can effectively reduce the wear of the chain and improve the efficiency and life of the pulverizer. The hydraulic motor chain tightening device of the current pulverizer has a complex structure and a complicated process when adjusting. It can only tighten the chain of equipment of specified models, which is not convenient for promotion and use. Utility Model Content

[0003] The purpose of the utility model is to provide a hydraulic motor chain tightening device for a pulverizer, so as to solve the problems in the above-mentioned background technology that the hydraulic motor chain tightening device for a pulverizer has a complex structure, a complicated process when adjusting, can only tighten the chain for equipment of specified models, and is not convenient for popularization and use.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A hydraulic motor chain tightening device for a pulverizer comprises a chain tightening gear and an adjusting frame, wherein a rotating shaft is coaxially connected to the chain tightening gear, two ends of the rotating shaft are connected to the adjusting frame, and a tension adjusting cylinder is installed at the bottom center of the adjusting frame;

[0006] A connecting sleeve is provided at the central axis of the chain tightening gear along the axial direction, and the connecting sleeve is connected to the outer wall of the rotating shaft through fixing bolts;

[0007] The cross section of the adjusting frame is U-shaped, and bearings are embedded on the inner walls of both sides of the adjusting frame;

[0008] Both ends of the rotating shaft are provided with plug connectors, which are matched with the inner ring diameter of the bearing and are plug-fitted together. Limit bolts for limiting position are installed on the outer walls of the plug connectors at both ends.

[0009] Preferably, the chain tightening gear is arranged at the center of the rotating shaft.

[0010] Preferably, the inner diameter of the connecting sleeve is matched with the outer diameter of the rotating shaft and the two are plug-fitted.

[0011] Preferably, the height of the adjustment frame is greater than the radius of the chain tightening gear.

[0012] Preferably, the piston rod of the tension adjustment cylinder is connected to the bottom center of the adjustment frame.

[0013] Preferably, the bottom of the tension adjustment cylinder is coaxially connected to a fixed chassis.

[0014] Preferably, a rubber shock-absorbing pad with a thickness of 2-5 mm is provided on the bottom surface of the fixed chassis.

[0015] Preferably, the top surface of the fixed chassis is connected to the workbench by four mounting bolts.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The hydraulic motor chain tightening device of the pulverizer adopts a combination of a chain tightening gear and an adjusting frame, which can facilitate the tensioning operation of the chain, especially through the tension adjusting cylinder, the precise control of the chain tightness can be achieved to ensure the stable operation of the pulverizer, and the structure is simple and easy to operate; the chain tightening gear is connected to the outer wall of the rotating shaft through a connecting sleeve and a fixing bolt, which is convenient for installation or disassembly, and the corresponding type of chain tightening gear can be selected according to the sprocket teeth of the transmission chain between the hydraulic motor and the pulverizer, which is convenient for promotion; the plug-in connector is compatible with the inner ring diameter size of the bearing and plug-in fit, which can effectively fix the bearing and prevent it from falling off during operation. The limit bolts installed on the outer wall of the plug-in connector can prevent the plug-in connector from shifting when subjected to excessive external force, thereby increasing the safety of the equipment.

[0018] 2. In the hydraulic motor chain tightening device of this crusher, the height of the adjustment frame is greater than the radius of the chain tightening gear, and the piston rod of the tension adjustment cylinder is connected to the bottom center of the adjustment frame, so that the tension adjustment cylinder can accurately control the tension of the chain, which can effectively reduce friction and make the rotating shaft smoother during rotation.

[0019] 3. In the hydraulic motor chain tightening device of this crusher, a rubber shock-absorbing pad is set on the bottom surface of the fixed chassis, which can effectively absorb the vibration and impact generated by the equipment during operation, thereby extending the service life of the equipment. The top surface of the fixed chassis is connected to the workbench through four mounting bolts, which can be installed on the workbench more firmly, improving the stability and safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, further detailed explanation is provided, but the accompanying drawings do not constitute a limitation to the present invention.

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the main structure of the adjustment frame and the chain tightening gear of the utility model;

[0023] Figure 3 It is a schematic diagram of the main structure of the utility model when it is used.

[0024] The meaning of the symbols in the figure:

[0025] 10. Chain tightening gear; 11. Connecting sleeve; 12. Fixing bolt;

[0026] 20. Rotating shaft; 21. Plug connector; 22. Limit bolt;

[0027] 30. Adjustment frame; 31. Bearing;

[0028] 40. Tension adjustment cylinder; 41. Piston rod; 42. Fixed chassis;

[0029] 50. Crusher gear;

[0030] 60. Hydraulic motor gear;

[0031] 70. Transmission chain. DETAILED DESCRIPTION

[0032] The following will combine the embodiments of the utility model and the drawings of the specification to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only 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.

[0033] In the description of the present invention, it should be understood that the terms "center", "vertical", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] A hydraulic motor chain tightening device for a pulverizer, such as Figure 1-Figure 3As shown, it includes a chain tightening gear 10 and an adjusting frame 30, the chain tightening gear 10 is coaxially connected with a rotating shaft 20, both ends of the rotating shaft 20 are connected to the adjusting frame 30, and a tension adjusting cylinder 40 is installed at the bottom center of the adjusting frame 30; an axial connecting sleeve 11 is arranged at the central axis of the chain tightening gear 10, and the connecting sleeve 11 is connected to the outer wall of the rotating shaft 20 by a fixing bolt 12; the cross section of the adjusting frame 30 is U-shaped, and bearings 31 are embedded on the inner walls of both sides of the adjusting frame 30; plug connectors 21 are arranged at both ends of the rotating shaft 20, and the plug connectors 21 are adapted to the inner ring diameter size of the bearing 31 and are plug-fitted, and limiting bolts 22 for limiting are installed on the outer walls of the plug connectors 21 at both ends, and the combination of the chain tightening gear 10 and the adjusting frame 30 is adopted, so that the chain tensioning operation can be conveniently performed. In particular, through the tension adjustment cylinder 40, the chain tension can be accurately controlled to ensure the stable operation of the crusher; the chain tightening gear 10 is connected to the outer wall of the rotating shaft 20 through the connecting sleeve 11 and the fixing bolt 12, which is convenient for installation or disassembly, and the corresponding model of the chain tightening gear 10 can be selected according to the sprocket teeth of the transmission chain 70 between the hydraulic motor and the crusher, which is convenient for promotion; the plug connector 21 is compatible with the inner ring diameter size of the bearing 31 and is plug-in matched, which can effectively fix the bearing 31 and prevent it from falling off during operation. The limit bolt 22 installed on the outer wall of the plug connector 21 can prevent the plug connector 21 from shifting when subjected to excessive external force, thereby increasing the safety of the equipment.

[0035] Furthermore, the chain tightening gear 10 is arranged at the center of the rotating shaft 20, and the inner diameter of the connecting sleeve 11 is adapted to the outer diameter of the rotating shaft 20 and the two are plugged together, so that the chain tightening gear 10 can be more firmly connected to the rotating shaft 20, thereby improving the safety and stability of the equipment.

[0036] Specifically, the height of the adjustment frame 30 is greater than the radius of the chain tightening gear 10, and the piston rod 41 of the tension adjustment cylinder 40 is connected to the bottom center of the adjustment frame 30, so that the tension adjustment cylinder 40 can accurately control the tension of the chain, which can effectively reduce friction and make the rotating shaft 20 smoother during rotation.

[0037] In addition, the bottom of the tension adjustment cylinder 40 is coaxially connected to the fixed chassis 42, which increases the stability and safety of the equipment and prevents the tension adjustment cylinder 40 from being displaced too much during operation, thereby ensuring the normal operation of the equipment. The bottom surface of the fixed chassis 42 is provided with a rubber shock-absorbing pad with a thickness of 2-5 mm, which can effectively absorb the vibration and impact generated by the equipment during operation, thereby extending the service life of the equipment. The top surface of the fixed chassis 42 is connected to the workbench through four mounting bolts, so it can be installed on the workbench more firmly, improving the stability and safety of the equipment.

[0038] The working principle of the hydraulic motor chain tightening device of the pulverizer of the utility model is as follows: Figure 3 As shown, when in use, the operator selects the corresponding model of the chain tightening gear 10 according to the chain tooth model of the transmission chain 70 between the crusher gear 50 and the hydraulic motor gear 60, installs the chain tightening gear 10 on the rotating shaft 20, and connects the connecting sleeve 11 to the outer wall of the rotating shaft 20 through the fixing bolt 12, and then plugs the plug connectors 21 at both ends of the rotating shaft 20 into the bearings 31 on the adjusting frame 30 respectively, and locks them through the limit bolts 22. When the chain needs to be tightened, the chain tightening gear 10 is driven to move downward by the tension adjustment cylinder 40 to tighten the transmission chain 70, so as to realize the continuous operation of the crusher gear 50, the hydraulic motor gear 60 and the transmission chain 70.

[0039] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A hydraulic motor chain tightening device for a pulverizer, characterized in that: The invention comprises a chain tightening gear (10) and an adjusting frame (30), wherein a rotating shaft (20) is coaxially connected to the chain tightening gear (10), two ends of the rotating shaft (20) are connected to the adjusting frame (30), and a tension adjusting cylinder (40) is installed at the bottom center of the adjusting frame (30); A connecting sleeve (11) is provided at the central axis of the chain tightening gear (10) along the axial direction, and the connecting sleeve (11) is connected to the outer wall of the rotating shaft (20) through a fixing bolt (12); The cross section of the adjusting frame (30) is U-shaped, and bearings (31) are embedded on the inner walls of both sides of the adjusting frame (30); Both ends of the rotating shaft (20) are provided with plug connectors (21), the plug connectors (21) are compatible with the inner ring diameter of the bearing (31) and are plug-fitted, and limiting bolts (22) for limiting position are installed on the outer walls of the plug connectors (21) at both ends.

2. The hydraulic motor chain tightening device for a pulverizer according to claim 1, characterized in that: The chain tightening gear (10) is arranged at the center of the rotating shaft (20).

3. The hydraulic motor chain tightening device for a pulverizer according to claim 1, characterized in that: The inner diameter of the connecting sleeve (11) is matched to the outer diameter of the rotating shaft (20), and the two are plug-fitted.

4. The hydraulic motor chain tightening device for a pulverizer according to claim 1, characterized in that: The height of the adjustment frame (30) is greater than the radius of the chain tightening gear (10).

5. The hydraulic motor chain tightening device for a pulverizer according to claim 1, characterized in that: The piston rod (41) of the tension adjustment cylinder (40) is connected to the bottom center of the adjustment frame (30).

6. The hydraulic motor chain tightening device for a pulverizer according to claim 1, characterized in that: The bottom of the tension adjustment cylinder (40) is coaxially connected to a fixed chassis (42).

7. The hydraulic motor chain tightening device for a pulverizer according to claim 6, characterized in that: The bottom surface of the fixed chassis (42) is provided with a rubber shock-absorbing pad with a thickness of 2-5 mm.

8. The hydraulic motor chain tightening device for a pulverizer according to claim 6, characterized in that: The top surface of the fixed chassis (42) is connected to the workbench via four mounting bolts.

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