Power wheel device for jaw crushing bucket belt transmission

Abstract

The power wheel device comprises a hydraulic motor, the hydraulic motor is connected with a power wheel through an internal spline, a motor support is arranged between the hydraulic motor and the power wheel, the motor support is connected with a shell side plate and a belt tensioning plate, and the power wheel is in transmission connection with a movable jaw eccentric shaft belt wheel through a belt. According to the power wheel device for jaw crushing bucket belt transmission, the structure is compact, the two ends of the power wheel are axially and radially positioned through the motor support and the bearing, and the radial alternating load generated when the power wheel bears tensile force is unloaded to the motor support through the bearing; the spline shaft connected between the power wheel and the output shaft of the motor is only used for transmitting torque, the problem of alternating unbalance loading of the power wheel and the spline teeth of the motor is solved, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of crushing bucket transmission auxiliary equipment and relates to a power wheel device for belt transmission of a jaw crushing bucket. Background Art

[0002] As an excavator attachment, the crushing bucket is mainly used to crush the excavated ore, rock, soil, sand and gravel and other construction materials, and its working conditions are harsh. The jaw crusher bucket generally drives the power wheel through a hydraulic motor, and the power wheel drives the eccentric shaft pulley of the movable jaw through a belt drive. The power wheel in the existing jaw crusher bucket is usually directly connected to the hydraulic motor through a spline, forming a cantilever support structure. When the equipment is in use, the radial tension directly acts on the spline shaft of the hydraulic motor, causing the spline teeth to bear additional alternating loads during operation. In addition, the deformation of the spline shaft due to eccentric load makes the spline teeth mesh unevenly, which can easily lead to fatigue failure of the spline teeth in the power wheel.

[0003] In summary, the prior art has the problem of premature failure of the internal spline teeth of the power wheel due to the axial offset load of the hydraulic motor spline shaft. Summary of the invention

[0004] The purpose of the present invention is to provide a power wheel device for a jaw crusher belt drive, which solves the problem of premature failure of the inner spline teeth of the power wheel caused by the axial offset load of the spline shaft of the hydraulic motor in the prior art.

[0005] The technical solution adopted by the present invention is a power wheel device for belt transmission of a jaw crusher bucket, including a hydraulic motor, which is connected to the power wheel through an internal spline, and a motor bracket is arranged between the hydraulic motor and the power wheel, and the motor bracket is respectively connected to the side plate of the shell and the belt tensioning plate, and the power wheel is connected to the eccentric shaft pulley of the movable jaw through a belt.

[0006] The present invention is also characterized in that: The motor bracket includes a base plate, and a plurality of power wheel device connecting screws are arranged on one side of the base plate. The power wheel device connecting screws pass through the long holes on the side plates of the shell. The power wheel device connecting screws cooperate with the long holes on the side plates of the shell to fix the base plate on the side walls of the side plates of the shell.

[0007] The hydraulic motor is connected to a side wall of the base plate close to the shell side plate through a plurality of hydraulic motor connecting bolts.

[0008] Support columns are vertically connected at both ends of the outer wall of the base plate away from the shell side plate, and the end of the support column away from the base plate is connected to the two ends of the bracket cover plate through the bracket cover plate connecting screws.

[0009] One end of the base plate away from the movable jaw eccentric shaft pulley is connected to the belt tensioning plate through a locking nut and a belt tensioning plate connecting bolt.

[0010] Bearings are respectively arranged at both ends of the power wheel, and the outer wall of the bearing at one end of the power wheel away from the base plate is respectively fitted with the bracket cover plate and the power wheel.

[0011] The outer wall of the bearing at one end of the power wheel close to the base plate is respectively fitted with the base plate and the power wheel.

[0012] Pins are respectively arranged between the bracket cover plate and the support column.

[0013] The beneficial effects of the present invention are as follows: the present invention has a compact structure, and axially and radially positions the two ends of the power wheel through the motor bracket and the bearing, and unloads the radial alternating load generated by the tension on the power wheel to the motor bracket through the bearing, so that the spline shaft connected between the power wheel and the motor output shaft is only used to transmit torque, which solves the problem of alternating eccentric loads on the power wheel and the motor spline teeth and improves the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the jaw crusher bucket; Figure 2 It is a structural schematic diagram of a power wheel device for belt transmission of a jaw crusher bucket of the present invention; Figure 3 for Figure 2 The structural diagram on the reverse side; Figure 4 It is a partial cross-sectional view of the open power wheel device for the belt drive of the jaw crusher bucket of the present invention.

[0015] In the figure, 1. eccentric shaft pulley of movable jaw; 2. belt; 3. side plate of housing; 4. power wheel device; 5. belt tensioning plate; 6. hydraulic motor; 7. motor bracket; 8. power wheel; 9. locking nut; 10. belt tensioning plate connecting bolt; 11. bracket cover; 12. bracket cover connecting screw; 13. pin; 14. power wheel device connecting screw; 15. hydraulic motor connecting bolt; 16. bearing. DETAILED DESCRIPTION

[0016] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] like Figure 1 As shown, the movable jaw eccentric shaft pulley 1 on the jaw crusher bucket is connected to the power wheel device 4 proposed in the present invention through a belt 2, and the power wheel device 4 proposed in the present invention is connected to the shell side plate 3 and the belt tensioning plate 5 respectively.

[0018] like Figure 2 and Figure 3As shown, the power wheel device for the belt drive of the jaw crusher bucket includes a hydraulic motor 6, which is connected to the power wheel 8 through an internal spline. A motor bracket 7 is provided between the hydraulic motor 6 and the power wheel 8. The motor bracket 7 is respectively connected to the shell side plate 3 and the belt tensioning plate 5. The power wheel 8 is connected to the eccentric shaft pulley 1 of the movable jaw through a belt 2.

[0019] The motor bracket 7 includes a base plate, and a plurality of power wheel device connecting screws 14 are arranged on one side of the base plate. The power wheel device connecting screws 14 pass through the long holes on the shell side plate 3. The power wheel device connecting screws 14 cooperate with the long holes on the shell side plate 3 to fix the base plate on the side wall of the shell side plate 3. The hydraulic motor 6 is connected to the side wall of the base plate close to the shell side plate 3 through a plurality of hydraulic motor connecting bolts 15.

[0020] Support columns are vertically connected at both ends of the outer wall of the base away from the shell side plate 3, and the end of the support column away from the base is connected to the two ends of the bracket cover 11 through the bracket cover connecting screws 12. The end of the base away from the movable jaw eccentric shaft pulley 1 is connected to the belt tensioning plate 5 through the locking nut 9 and the belt tensioning plate connecting bolt 10.

[0021] like Figure 4 As shown, bearings 16 are respectively arranged at both ends of the power wheel 8, and the outer wall of the bearing 16 at the end of the power wheel 8 away from the base plate is respectively fitted with the bracket cover 11 and the power wheel 8. The outer wall of the bearing 16 at the end of the power wheel 8 close to the base plate is respectively fitted with the base plate and the power wheel 8.

[0022] Pins 13 are respectively provided between the support cover plate 11 and the support column.

[0023] The present invention designs a power wheel device for belt transmission of a jaw crusher bucket, in which the power wheel 8 is fixedly supported by the bearing 16. The spline shaft of the hydraulic motor only needs to provide rotational torque and does not need to bear axial offset load, thereby effectively solving the problem of premature failure of the inner spline teeth of the power wheel caused by the axial offset load of the spline shaft of the hydraulic motor, and significantly improving the service life and maintenance cycle of the jaw crusher bucket.

[0024] Example 1 This embodiment proposes a power wheel device for belt transmission of a jaw crusher bucket, including a hydraulic motor 6, which is connected to a power wheel 8 through an internal spline, a motor bracket 7 is provided between the hydraulic motor 6 and the power wheel 8, the motor bracket 7 is respectively connected to the shell side plate 3 and the belt tensioning plate 5, and the power wheel 8 is connected to the movable jaw eccentric shaft pulley 1 through a belt 2.

[0025] Example 2 This embodiment proposes a power wheel device for belt transmission of a jaw crusher bucket, including a hydraulic motor 6, which is connected to a power wheel 8 through an internal spline, a motor bracket 7 is provided between the hydraulic motor 6 and the power wheel 8, the motor bracket 7 is respectively connected to the housing side plate 3 and the belt tensioning plate 5, and the power wheel 8 is connected to the movable jaw eccentric shaft pulley 1 through a belt 2. The motor bracket 7 includes a base plate, and four power wheel device connecting screws 14 are provided on one side of the base plate, and the power wheel device connecting screws 14 pass through the long strip holes on the housing side plate 3, and the power wheel device connecting screws 14 cooperate with the long strip holes on the housing side plate 3 to fix the base plate on the side wall of the housing side plate 3.

[0026] Example 3 This embodiment proposes a power wheel device for belt transmission of a jaw crusher bucket, including a hydraulic motor 6, which is connected to a power wheel 8 through an internal spline, and a motor bracket 7 is provided between the hydraulic motor 6 and the power wheel 8, and the motor bracket 7 is respectively connected to the housing side plate 3 and the belt tensioning plate 5, and the power wheel 8 is connected to the movable jaw eccentric shaft pulley 1 through a belt 2. The motor bracket 7 includes a base plate, and four power wheel device connecting screws 14 are provided on one side of the base plate, and the power wheel device connecting screws 14 pass through the long strip holes on the housing side plate 3, and the power wheel device connecting screws 14 cooperate with the long strip holes on the housing side plate 3 to fix the base plate on the side wall of the housing side plate 3. The hydraulic motor 6 is connected to the side wall of the base plate close to the housing side plate 3 through four hydraulic motor connecting bolts 15.

[0027] Example 4 This embodiment proposes a power wheel device for belt transmission of a jaw crusher bucket, including a hydraulic motor 6, which is connected to a power wheel 8 through an internal spline, a motor bracket 7 is arranged between the hydraulic motor 6 and the power wheel 8, the motor bracket 7 is respectively connected to the housing side plate 3 and the belt tensioning plate 5, and the power wheel 8 is connected to the movable jaw eccentric shaft pulley 1 through a belt 2. The motor bracket 7 includes a base plate, and four power wheel device connecting screws 14 are arranged on one side of the base plate. The power wheel device connecting screws 14 pass through the long strip holes on the housing side plate 3, and the power wheel device connecting screws 14 cooperate with the long strip holes on the housing side plate 3 to fix the base plate on the side wall of the housing side plate 3. The hydraulic motor 6 is connected to the side wall of the base plate close to the housing side plate 3 through four hydraulic motor connecting bolts 15. Support columns are vertically connected to the two ends of the outer wall of the base plate away from the housing side plate 3, and the end of the support column away from the base plate is respectively connected to the two ends of the support cover plate 11 through the support cover plate connecting screws 12.

[0028] Example 5 This embodiment proposes a power wheel device for belt transmission of a jaw crusher bucket, including a hydraulic motor 6, which is connected to a power wheel 8 through an internal spline, a motor bracket 7 is provided between the hydraulic motor 6 and the power wheel 8, the motor bracket 7 is respectively connected to the shell side plate 3 and the belt tensioning plate 5, and the power wheel 8 is connected to the movable jaw eccentric shaft pulley 1 through a belt 2.

[0029] The motor bracket 7 includes a base plate, and four power wheel device connecting screws 14 are arranged on one side of the base plate. The power wheel device connecting screws 14 pass through the long holes on the shell side plate 3. The power wheel device connecting screws 14 cooperate with the long holes on the shell side plate 3 to fix the base plate on the side wall of the shell side plate 3. The hydraulic motor 6 is connected to the side wall of the base plate close to the shell side plate 3 through four hydraulic motor connecting bolts 15. Support columns are vertically connected to both ends of the outer wall of the base plate away from the shell side plate 3. The end of the support column away from the base plate is connected to the two ends of the bracket cover plate 11 through the bracket cover plate connecting screws 12. The end of the base plate away from the movable jaw eccentric shaft pulley 1 is connected to the belt tensioning plate 5 through the locking nut 9 and the belt tensioning plate connecting bolt 10.

[0030] Example 6 This embodiment proposes a power wheel device for belt transmission of a jaw crusher bucket, including a hydraulic motor 6, which is connected to a power wheel 8 through an internal spline, a motor bracket 7 is provided between the hydraulic motor 6 and the power wheel 8, the motor bracket 7 is respectively connected to the shell side plate 3 and the belt tensioning plate 5, and the power wheel 8 is connected to the movable jaw eccentric shaft pulley 1 through a belt 2.

[0031] The motor bracket 7 includes a base plate, and four power wheel device connecting screws 14 are arranged on one side of the base plate. The power wheel device connecting screws 14 pass through the long holes on the shell side plate 3. The power wheel device connecting screws 14 cooperate with the long holes on the shell side plate 3 to fix the base plate on the side wall of the shell side plate 3. The hydraulic motor 6 is connected to the side wall of the base plate close to the shell side plate 3 through four hydraulic motor connecting bolts 15. Support columns are vertically connected to both ends of the outer wall of the base plate away from the shell side plate 3. The end of the support column away from the base plate is connected to both ends of the bracket cover plate 11 through the bracket cover plate connecting screws 12.

[0032] The end of the base plate away from the movable jaw eccentric shaft pulley 1 is connected to the belt tensioning plate 5 through a locking nut 9 and a belt tensioning plate connecting bolt 10. Bearings 16 are respectively provided at both ends of the power wheel 8, and the outer wall of the bearing 16 at the end of the power wheel 8 away from the base plate is respectively fitted with the bracket cover 11 and the power wheel 8.

[0033] Example 7 This embodiment proposes a power wheel device for belt transmission of a jaw crusher bucket, including a hydraulic motor 6, which is connected to a power wheel 8 through an internal spline, a motor bracket 7 is provided between the hydraulic motor 6 and the power wheel 8, the motor bracket 7 is respectively connected to the shell side plate 3 and the belt tensioning plate 5, and the power wheel 8 is connected to the movable jaw eccentric shaft pulley 1 through a belt 2.

[0034] The motor bracket 7 includes a base plate, and four power wheel device connecting screws 14 are arranged on one side of the base plate. The power wheel device connecting screws 14 pass through the long strip holes on the shell side plate 3. The power wheel device connecting screws 14 cooperate with the long strip holes on the shell side plate 3 to fix the base plate on the side wall of the shell side plate 3. The hydraulic motor 6 is connected to the side wall of the base plate close to the shell side plate 3 through four hydraulic motor connecting bolts 15. Support columns are vertically connected to the two ends of the outer wall of the base plate away from the shell side plate 3. The ends of the support columns away from the base plate are connected to the two ends of the bracket cover plate 11 through the bracket cover plate connecting screws 12. The end of the base plate away from the movable jaw eccentric shaft pulley 1 is connected to the belt tensioning plate 5 through the locking nut 9 and the belt tensioning plate connecting bolts 10. Bearings 16 are arranged at both ends of the power wheel 8. The outer wall of the bearing 16 at the end of the power wheel 8 away from the base plate is respectively fitted with the bracket cover plate 11 and the power wheel 8. The outer wall of the bearing 16 at the end of the power wheel 8 close to the base plate is respectively fitted with the base plate and the power wheel 8.

[0035] Example 8 This embodiment proposes a power wheel device for belt transmission of a jaw crusher, including a hydraulic motor 6, which is connected to a power wheel 8 through an internal spline, a motor bracket 7 is arranged between the hydraulic motor 6 and the power wheel 8, the motor bracket 7 is respectively connected to the housing side plate 3 and the belt tensioning plate 5, and the power wheel 8 is connected to the movable jaw eccentric shaft pulley 1 through a belt 2. The motor bracket 7 includes a base plate, one side of which is provided with four power wheel device connecting screws 14, which pass through the long strip holes on the housing side plate 3, and the power wheel device connecting screws 14 and the long strip holes on the housing side plate 3 cooperate to fix the base plate on the side wall of the housing side plate 3. The hydraulic motor 6 is connected to the side wall of the base plate close to the housing side plate 3 through four hydraulic motor connecting bolts 15. Support columns are vertically connected to the two ends of the outer wall of the base plate away from the housing side plate 3, and the end of the support column away from the base plate is respectively connected to the two ends of the support cover plate 11 through the support cover plate connecting screws 12. Pins 13 are respectively arranged between the support cover plate 11 and the support column.

[0036] In this embodiment, the belt tensioning plate 5 is installed on the shell side plate 3 by welding. The shell side plate 3 is provided with a long hole. The power wheel 8 on the power wheel device 4 provides power to the movable jaw eccentric shaft pulley 1 through the belt 2. The motor bracket 7 is installed on the shell side plate 3 through the power wheel device connecting screw 14, and is installed on the belt tensioning plate 5 through the belt tensioning plate connecting bolt 10 and the locking nut 9. The locking nut 9 can be rotated to cooperate with the long hole set on the shell side plate 3 to adjust the power wheel device 4 to move forward and backward along the shell side plate 3, so as to achieve the purpose of tensioning the belt 2 without causing excessive radial tension on the power wheel 8, thereby improving the service life of the power wheel 8.

[0037] The power wheel device 4 includes a hydraulic motor 6, a motor bracket 7, a power wheel 8, a bracket cover 11, and a bearing 16. The hydraulic motor 6 is installed on the motor bracket 7 through a hydraulic motor connecting bolt 15. An elastic washer and a flat washer are installed between the hydraulic motor connecting bolt 15 and the hydraulic motor 6 to fasten the hydraulic motor 6 to the motor bracket 7; the power wheel 8 is connected to the hydraulic motor 6 through an internal spline, and bearings 16 are installed in the shaft diameter and the inner hole at the other end of the power wheel 8. The bearing 16 is axially positioned through the motor bracket 7 and the bracket cover 11. The bracket cover 11 is installed on the motor bracket 7 through the bracket cover connecting screws 12 and the bearing 16 is axially positioned and pressed. Pins 13 are installed between the motor bracket 7 and the two sides of the bracket cover 11 to resist radial shear force.

[0038] The present invention performs axial and radial positioning on both ends of the power wheel 8 through the motor bracket 7 and the bearing 16, and unloads the radial alternating load generated by the tension on the power wheel 8 to the motor bracket 7 through the bearing 16, so that the internal spline connected to the power wheel 8 and the spline shaft connected to the output shaft of the hydraulic motor 6 are only used to transmit torque, thereby solving the problem of alternating eccentric loads on the spline teeth of the power wheel 8 and the hydraulic motor 6, and improving the service life of the equipment.

Claims

1. A power wheel device for belt drive of a jaw crusher bucket, characterized in that: The invention comprises a hydraulic motor (6), wherein the hydraulic motor (6) is connected to a power wheel (8) via an internal spline, a motor bracket (7) is arranged between the hydraulic motor (6) and the power wheel (8), the motor bracket (7) is respectively connected to a housing side plate (3) and a belt tensioning plate (5), and the power wheel (8) is transmission-connected to an eccentric shaft pulley (1) of a movable jaw via a belt (2).

2. The power wheel device for belt transmission of jaw crusher bucket according to claim 1, characterized in that: The motor bracket (7) comprises a base plate, and a plurality of power wheel device connecting screws (14) are arranged on one side of the base plate. The power wheel device connecting screws (14) pass through the elongated holes on the shell side plate (3). The power wheel device connecting screws (14) cooperate with the elongated holes on the shell side plate (3) to fix the base plate on the side wall of the shell side plate (3).

3. The power wheel device for belt transmission of jaw crusher bucket according to claim 2, characterized in that: The hydraulic motor (6) is connected to a side wall of the base plate close to the housing side plate (3) via a plurality of hydraulic motor connecting bolts (15).

4. The power wheel device for belt transmission of jaw crusher bucket according to claim 3, characterized in that: Support columns are vertically connected to both ends of the outer wall of the base plate away from the shell side plate (3), and the end of the support column away from the base plate is connected to both ends of the bracket cover plate (11) through bracket cover plate connecting screws (12).

5. The power wheel device for belt transmission of jaw crusher bucket according to claim 4, characterized in that: The end of the base plate away from the movable jaw eccentric shaft pulley (1) is connected to the belt tensioning plate (5) via a locking nut (9) and a belt tensioning plate connecting bolt (10).

6. The power wheel device for belt transmission of jaw crusher bucket according to claim 5, characterized in that: Bearings (16) are respectively provided at both ends of the power wheel (8), and the outer wall of the bearing (16) at the end of the power wheel (8) away from the base plate is respectively fitted with the bracket cover plate (11) and the power wheel (8).

7. The power wheel device for belt transmission of jaw crusher bucket according to claim 6, characterized in that: The outer wall of the bearing (16) at one end of the power wheel (8) close to the base plate is respectively fitted with the base plate and the power wheel (8).

8. The power wheel device for belt transmission of jaw crusher bucket according to claim 4, characterized in that: Pins (13) are respectively arranged between the support cover plate (11) and the support column.

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