CN213254602U - Power device and jaw crusher - Google Patents

Abstract

The utility model relates to the field of engineering equipment, in particular to a power device and a jaw crusher; the power device comprises a motor, a connecting sleeve, a power shaft and a bearing assembly, wherein the connecting sleeve is provided with an installation cavity, the bearing assembly is arranged in the installation cavity, one end of the power shaft extends into the installation cavity to be matched with the bearing assembly, a lubricating oil cavity is formed between the inner walls of the power shaft and the connecting sleeve, at least one part of the motor is embedded in the installation cavity, and the motor shaft of the motor is in transmission connection with the power shaft. The utility model discloses a power device can improve the motor shaft and receive the radial tensile condition, improves the impaired condition of motor, and then avoids jaw breaker card to die.

Description

Power device and jaw crusher

Technical Field

The utility model relates to an engineering equipment field particularly, relates to a power device and jaw crusher.

Background

The jaw crusher is commonly called jaw crusher, also called as old tiger mouth, and is a crusher which is characterized in that a movable jaw plate and a fixed jaw plate form a crushing bucket, simulates the movement of two jaws of an animal to complete material crushing operation, and is widely applied to crushing various ores and large materials in the industries of mine smelting, building materials, highways, railways, water conservancy, chemical engineering and the like. The power source of the jaw crusher is from the hydraulic flow distributed by the hydraulic assembly of the excavator to drive the hydraulic motor, and the hydraulic motor has higher torque.

Related art's hydraulic motor driven breaker mainly adopts directly to link the transmission, directly installs drive pulley in the hydraulic motor epaxial, leads to motor bearing to receive too big radial tension easily, and then leads to equipment to block easily, leads to the motor to damage even.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a power device and jaw breaker, it can improve the motor shaft and receive the radial tensile condition, improves the impaired condition of motor, and then avoids jaw breaker card to die.

The embodiment of the utility model is realized like this:

in a first aspect, the embodiment of the utility model provides a power device, it includes motor, adapter sleeve, power shaft and bearing assembly, and the adapter sleeve is equipped with the installation cavity, and bearing assembly sets up in the installation cavity, and the one end of power shaft stretches into the installation cavity and cooperates with bearing assembly, forms lubricating oil chamber between the inner wall of power shaft and adapter sleeve, and at least some of motor inlays to be located in the installation cavity, and the motor shaft and the power shaft transmission of motor are connected.

In an alternative embodiment, the bearing assembly includes a first bearing and a second bearing, both disposed in the mounting cavity and simultaneously engaged with the power shaft, the first bearing and the second bearing being spaced apart in an axial direction of the power shaft, and the lubricant pocket being located between the first bearing and the second bearing.

In an optional embodiment, the connecting sleeve comprises a shell sleeve and an end cover connected with one end of the shell sleeve, the shell sleeve is provided with an installation cavity, the end cover is provided with a shaft hole communicated with the installation cavity, and the power shaft penetrates through the shaft hole; the first bearing is abutted against the inner wall of the end cover.

In an optional embodiment, the power device further comprises an oil seal, the inner wall of the end cover is provided with a mounting groove, the mounting groove surrounds the periphery of the shaft hole, and the oil seal is arranged in the mounting groove.

In an alternative embodiment, the periphery of the power shaft is provided with a first limiting step, and one side of the first bearing, which is far away from the end cover, is abutted against the first limiting step.

In an optional embodiment, the inner wall of the connecting sleeve is provided with a second limiting step, the periphery of the power shaft is provided with a third limiting step, the second limiting step and the third limiting step are opposite and distributed at intervals along the radial direction of the power shaft, and one side of the second bearing, facing the first bearing, is simultaneously abutted against the second limiting step and the third limiting step.

In an alternative embodiment, the power unit further comprises a hole retainer ring, and the hole retainer ring is arranged on the side of the second bearing, which faces away from the first bearing.

In an optional embodiment, an oil filling hole is formed in the side wall of the connecting sleeve and communicated with the lubricating oil cavity.

In an alternative embodiment, the motor shaft is splined to the power shaft.

In a second aspect, embodiments of the present invention provide a jaw crusher comprising a power plant according to any one of the preceding embodiments.

The utility model discloses power device's beneficial effect includes: the utility model provides a power device comprises a motor, a connecting sleeve, a power shaft and a bearing assembly, wherein the connecting sleeve is provided with an installation cavity, the bearing assembly is arranged in the installation cavity, one end of the power shaft extends into the installation cavity to be matched with the bearing assembly, a lubricating oil cavity is formed between the inner wall of the power shaft and the connecting sleeve, at least one part of the motor is embedded in the installation cavity, and the motor shaft of the motor is in transmission connection with the power shaft; with the arrangement, when the motor shaft of the motor drives the power shaft to rotate, the radial tension borne by the power shaft can be transmitted to the bearing assembly so as to share the radial tension borne by the motor shaft, and further the problem that the motor bearing bears overlarge radial tension is solved so as to improve the damage condition of the motor; at least one part of the motor is embedded in the installation cavity, so that the transmission stability between the motor shaft of the motor and the power shaft can be further improved, and the power of the motor shaft can be stably transited to the power shaft.

And a lubricating oil cavity is formed between the connecting sleeve and the power shaft, so that lubricating oil can be injected into the lubricating oil cavity to ensure the reliability of the bearing assembly.

The utility model discloses jaw crusher's beneficial effect includes: the embodiment of the utility model provides a jaw crusher includes aforementioned power device, and power device can improve the radial pulling force that the motor shaft bore to improve the dead problem of jaw crusher card, and improve the impaired condition of motor.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a jaw crusher according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a transmission mechanism, a power device and a movable jaw plate in the embodiment of the present invention;

fig. 3 is a schematic structural diagram of a power device in an embodiment of the present invention at a first viewing angle;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

fig. 5 is a schematic structural diagram of an embodiment of the power device according to the present invention at a second viewing angle;

fig. 6 is a sectional view taken in the direction B-B in fig. 5.

Icon: 010-jaw crusher; 100-a frame; 110-movable jaw plate; 120-jawbone plate; 130-a transmission mechanism; 131-a belt; 132-a transmission wheel; 140-a crushing hopper; 200-a power plant; 210-a motor; 211-motor shaft; 220-connecting sleeve; 221-an installation cavity; 230-a power shaft; 240-a bearing assembly; 241-a first bearing; 242 — a second bearing; 243-lubricating oil chamber; 222-a shell; 223-end cap; 224-open mouth; 225-shaft hole; 251-oil sealing; 252-a mounting groove; 231-a first limit step; 226-a second limit step; 232-a third limit step; 253-hole retainer ring; 244-oil holes; 227-folding edges; 228-a connecting plate; 229-fourth limit step.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "inside" and "outside" are used for indicating the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the utility model is usually placed when using, and are only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present embodiment provides a jaw crusher which can be used for crushing material such as ore.

Referring to fig. 1, a jaw crusher 010 includes a frame 100, a movable jaw plate 110, a fixed jaw plate 120, a transmission mechanism 130 and a power device 200, wherein the fixed jaw plate 120, the transmission mechanism 130 and the power device 200 are all fixedly disposed on the frame 100, the movable jaw plate 110 is movably disposed on the frame 100, and the movable jaw plate 110 and the fixed jaw plate 120 are distributed relatively, so that a crushing bucket 140 for placing a material to be crushed is formed between the movable jaw plate 110 and the fixed jaw plate 120; the movable jaw plate 110 is in transmission connection with the power device 200 through the transmission mechanism 130, and the power device 200 is used for driving the transmission mechanism 130 to drive the movable jaw plate 110 to be close to or far away from the fixed jaw plate 120, so that when the movable jaw plate 110 is close to the fixed jaw plate 120, materials in the crushing hopper 140 are extruded, and then the movable jaw plate 110 and the fixed jaw plate 120 are used for crushing the materials in the crushing hopper 140.

Further, a first end of the jaw plate 110 is rotatably connected to the frame 100, a second end of the jaw plate 110 can be close to or far away from the jaw plate 120, and when the second end of the jaw plate 110 is far away from the jaw plate 120, the crushing bucket 140 formed between the jaw plate 110 and the jaw plate 120 is substantially funnel-shaped; the second end of the jaw plate 110 is drivingly connected to the power unit 200 through the transmission mechanism 130, and the power unit 200 is configured to drive the transmission mechanism 130 to rotate the second end of the jaw plate 110 relative to the first end of the jaw plate 110, so as to move the second end of the jaw plate 110 closer to or away from the jaw plate 120.

Still further, the first end of the movable jaw 110 may be rotatably connected to the frame 100 through a rotating shaft (not shown), and the specific structure thereof is similar to that of the related art and will not be described herein again.

The transmission mechanism 130 can be selected according to the requirement, referring to fig. 2, the transmission mechanism 130 of this embodiment is a belt assembly, the belt assembly includes a transmission wheel 132 and a belt 131, the transmission wheel 132 is fixedly connected to the second end of the jaw plate 110, and the power device 200 is in transmission connection with the transmission wheel 132 through the belt 131 to drive the second end of the jaw plate 110 to rotate around the first end of the jaw plate 110. Of course, in other embodiments, the transmission mechanism 130 may also be a chain assembly, etc., and is not limited herein.

It should be noted that the structure and operation principle of the jaw plate 110 and the jaw plate 120 are similar to those of the related art, and are not described herein again.

Referring to fig. 3 and 4, the power device 200 of the present embodiment includes a motor 210, a connecting sleeve 220, a power shaft 230 and a bearing assembly 240, the connecting sleeve 220 has a mounting cavity 221, the bearing assembly 240 is disposed in the mounting cavity 221, one end of the power shaft 230 extends into the mounting cavity 221 and is matched with the bearing assembly 240, a lubricating oil chamber 243 is formed between the power shaft 230 and an inner wall of the connecting sleeve 220, at least a portion of the motor 210 is embedded in the mounting cavity 221, and a motor shaft 211 of the motor 210 is in transmission connection with the power shaft 230. It should be noted that the other end of the power shaft 230 is located outside the connecting sleeve 220, and is used for being in transmission connection with the transmission mechanism 130; specifically, the belt 131 of this embodiment is simultaneously sleeved on the power shaft 230 and the driving wheel 132, and when the motor shaft 211 of the motor 210 transfers power to the power shaft 230, that is, when the motor shaft 211 of the motor 210 drives the power shaft 230 to rotate, the power shaft 230 can drive the belt 131 to drive the driving wheel 132 to rotate, so as to drive the second end of the jaw plate 110 to rotate around the first end of the jaw plate 110.

When the power device 200 of the embodiment drives the transmission mechanism 130, the belt 131 is not directly sleeved on the motor shaft 211, but is sleeved on the power shaft 230 and indirectly matched with the motor shaft 211, and when the motor shaft 211 of the motor 210 drives the power shaft 230 to rotate, the radial tension generated by the belt 131 borne by the power shaft 230 can be transmitted to the bearing assembly 240 to share the radial tension borne by the motor shaft 211, so as to improve the problem that the motor shaft 211 bears an excessive radial tension, and improve the damage condition of the motor 210; at least one part of the motor 210 is embedded in the installation cavity 221, so that the transmission stability between the motor shaft 211 of the motor 210 and the power shaft 230 can be further improved, the power of the motor shaft 211 can be stably transited to the power shaft 230, the motion reliability of the movable jaw plate 110 is further ensured, the situation that the materials in the crushing hopper 140 cannot be crushed and the generated clamping condition is avoided due to insufficient power of the movable jaw plate 110 is avoided.

Furthermore, a lubricating oil chamber 243 is formed between the connecting sleeve 220 and the power shaft 230, and lubricating oil can be injected into the lubricating oil chamber 243 to ensure the reliability of the bearing assembly 240.

It should be noted that the connection mode of the motor shaft 211 and the power shaft 230 can be selected according to the requirement, and the motor shaft 211 and the power shaft 230 of this embodiment are in spline fit; specifically, the motor shaft 211 is inserted into the power shaft 230 and is spline-fitted. Of course, in other embodiments, the connection manner of the motor shaft 211 and the power shaft 230 may also be an interference fit, and is not limited in particular herein.

Referring to fig. 4, the connection sleeve 220 of the present embodiment includes a casing 222 and an end cover 223 connected to one end of the casing 222, the casing 222 is provided with an installation cavity 221, the end cover 223 is provided with a shaft hole 225 communicated with the installation cavity 221, the power shaft 230 is inserted through the shaft hole 225, specifically, one end of the power shaft 230 penetrates through the shaft hole 225 and extends into the installation cavity 221, and the other end is located outside the installation cavity 221 and is used for being matched with the belt 131; the end of the casing 222 away from the end cap 223 has an opening 224 communicating with the mounting cavity 221, and part of the motor 210 is embedded in the mounting cavity 221 through the opening 224.

Optionally, the housing 222 is provided with a fourth limit step 229, the fourth limit step 229 is disposed adjacent to the opening 224, and the motor 210 abuts against the fourth limit step 229 to ensure the stability of the motor 210 matching with the connection sleeve 220.

Referring to fig. 4 to 6, an end of the casing 222 away from the end cap 223 has a flange 227, and the housing of the motor 210 is fixedly connected to the flange 227, so that the motor 210 and the casing 222 are stably engaged. The connection of the housing of the motor 210 to the flange 227 can be selected as desired, for example: the housing of the motor 210 may be fixedly connected to the flange 227 by a fastener such as a bolt, or the housing of the motor 210 may be bonded to the flange 227, and the like, and is not particularly limited herein.

Still further, the connection sleeve 220 further includes a connection plate 228 connected to the outer wall of the casing 222, and the connection plate 228 is connected to the frame 100 to stably mount the power unit 200 to the frame 100 without interfering with the operation of the motor 210 and the power shaft 230. The connecting plate 228 may be fixedly connected to the frame 100 by a fastener such as a bolt, or the connecting plate 228 may be welded to the frame 100.

It should be noted that, each component of the connecting sleeve 220 of the present embodiment is integrally formed, that is, the casing 222, the end cover 223, the folded edge 227 and the connecting plate 228 are integrally formed; of course, in other embodiments, the components of the connecting sleeve 220 may also be welded, and are not limited in particular.

Referring to fig. 4, the bearing assembly 240 of the present embodiment includes a first bearing 241 and a second bearing 242, the first bearing 241 and the second bearing 242 are both disposed in the mounting cavity 221 and are simultaneously matched with the power shaft 230, the first bearing 241 and the second bearing 242 are distributed at intervals along the axial direction of the power shaft 230, and the lubricating oil chamber 243 is located between the first bearing 241 and the second bearing 242. With the arrangement, when the power shaft 230 receives the radial tension generated by the belt 131, the first bearing 241 and the second bearing 242 can be used for sharing the radial tension borne by the power shaft 230, so that the radial tension borne by the motor shaft 211 can be improved; the lubricant chamber 243 is provided between the first bearing 241 and the second bearing 242, and reliability of the first bearing 241 and the second bearing 242 can be ensured.

Further, the inner cavity of the first bearing 241 and the inner ring of the second bearing 242 are both connected with the power shaft 230, the outer ring of the first bearing 241 and the outer ring of the second bearing 242 are both connected with the inner wall of the connecting sleeve 220, and specifically, the outer ring of the first bearing 241 and the outer ring of the second bearing 242 are both connected with the inner wall of the housing sleeve 222; the side of the first bearing 241 remote from the second bearing 242 abuts the inner wall of the end cap 223. With this arrangement, it is possible to ensure smooth rotation of the power shaft 230 with respect to the connection sleeve 220 by the first bearing 241 and the second bearing 242, and thus to ensure reliability of the motor 210 in driving the belt 131 through the power shaft 230. It should be noted that the second bearing 242 is disposed adjacent to the connection between the motor shaft 211 and the power shaft 230, so as to fully utilize the second bearing 242 to share the radial tension borne by the power shaft 230, thereby reducing the radial tension borne by the motor shaft 211.

Further, referring to fig. 4, a first limit step 231 is disposed on the periphery of the power shaft 230, and one side of the first bearing 241, which is far away from the end cover 223, abuts against the first limit step 231; with this arrangement, the position of the first bearing 241 is limited by the end cap 223 and the first limit step 231 in the axial direction of the power shaft 230, so that the first bearing 241 is prevented from shaking in the axial direction of the power shaft 230, and the reliability of the first bearing 241 is ensured.

The inner wall of the connecting sleeve 220 of this embodiment is provided with a second limiting step 226, specifically, the inner wall of the shell 222 is provided with the second limiting step 226, the periphery of the power shaft 230 is provided with a third limiting step 232, along the radial direction of the power shaft 230, the second limiting step 226 and the third limiting step 232 are opposite and distributed at intervals, and one side of the second bearing 242 facing the first bearing 241 is abutted to the second limiting step 226 and the third limiting step 232 at the same time. With this arrangement, the second limiting step 226 and the third limiting step 232 can be used to limit the second bearing 242 from moving toward the direction close to the first bearing 241, so as to improve the stability of the position of the second bearing 242, thereby ensuring the reliability of the second bearing 242.

Further, the power device 200 further includes a hole retainer 253, and the hole retainer 253 is disposed on a side of the second bearing 242 facing away from the first bearing 241; with this arrangement, the position of the second bearing 242 in the axial direction of the power shaft 230 can be restricted by the hole stopper 253, the second stopper step 226, and the third stopper step 232 together, and the reliability of the second bearing 242 can be ensured by ensuring the positional stability of the second bearing 242.

Still further, a side of the hole stopper 253 facing away from the second bearing 242 abuts against a housing portion of the motor 210 embedded in the mounting cavity 221, so as to ensure positional stability of the hole stopper 253.

Referring to fig. 4, the power device 200 of the present embodiment further includes an oil seal 251, an inner wall of the end cover 223 is provided with a mounting groove 252, the mounting groove 252 surrounds the periphery of the shaft hole 225, and the oil seal 251 is disposed in the mounting groove 252. With this arrangement, the oil seal 251 can be used for sealing, and the problem of oil leakage from the lubricating oil chamber 243 can be improved, so that the reliability of the first bearing 241 and the second bearing 242 can be ensured.

Referring to fig. 6, an oil hole 244 is further formed in a side wall of the connecting sleeve 220 of the present embodiment, and the oil hole 244 is communicated with the lubricating oil chamber 243 so as to inject lubricating oil into the lubricating oil chamber 243 through the oil hole 244.

Further, an oil filler hole 244 is opened in the side wall of case 222 and communicates with oil chamber 243.

The working principle of the jaw crusher 010 of this embodiment includes: the material to be crushed is placed in the crushing bucket 140, the motor shaft 211 of the motor 210 drives the power shaft 230 to rotate, so that the belt 131 is driven by the rotating power shaft 230 to drive the transmission wheel 132 to rotate, and then the transmission wheel 132 is used to drive the second end of the movable jaw plate 110 to rotate around the first end of the movable jaw plate 110 so as to be close to the fixed jaw plate 120, and then the movable jaw plate 110 and the fixed jaw plate 120 are used to crush the material.

To sum up, the power device 200 provided by the present invention can transmit the radial tension borne by the power shaft 230 to the bearing assembly 240 when the power shaft 230 is driven to rotate by the motor shaft 211 of the motor 210, so as to share the radial tension borne by the motor shaft 211, and further improve the problem that the motor shaft 211 bears too much radial tension, so as to improve the damage condition of the motor 210; at least a part of the motor 210 is embedded in the installation cavity 221, so that the stability of transmission between the motor shaft 211 of the motor 210 and the power shaft 230 can be further improved, and the power of the motor shaft 211 can be smoothly transferred to the power shaft 230. Furthermore, the jaw crusher 010 provided with the power unit 200 can be prevented from being locked after reducing the radial tension applied to the motor shaft 211.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a power device, its characterized in that, includes motor, adapter sleeve, power shaft and bearing assembly, the adapter sleeve is equipped with the installation cavity, bearing assembly set up in the installation cavity, just the one end of power shaft stretches into in the installation cavity with the bearing assembly cooperation, the power shaft with form lubricating oil chamber between the inner wall of adapter sleeve, at least some of motor inlays to be located in the installation cavity, just the motor shaft of motor with the power shaft transmission is connected.

2. The powerplant of claim 1, wherein the bearing assembly comprises a first bearing and a second bearing, the first bearing and the second bearing both being disposed within the mounting cavity and simultaneously engaging the power shaft, the first bearing and the second bearing being spaced apart along an axial direction of the power shaft, and the lubricant pocket being located between the first bearing and the second bearing.

3. The power device according to claim 2, wherein the connecting sleeve comprises a shell sleeve and an end cover connected with one end of the shell sleeve, the shell sleeve is provided with the mounting cavity, the end cover is provided with a shaft hole communicated with the mounting cavity, and the power shaft penetrates through the shaft hole; the first bearing is abutted against the inner wall of the end cover.

4. The power device according to claim 3, further comprising an oil seal, wherein an installation groove is formed in the inner wall of the end cover, the installation groove surrounds the periphery of the shaft hole, and the oil seal is arranged in the installation groove.

5. The power device of claim 3, wherein the periphery of the power shaft is provided with a first limit step, and one side of the first bearing, which is far away from the end cover, is abutted with the first limit step.

6. The power device according to claim 2, characterized in that the inner wall of the connecting sleeve is provided with a second limiting step, the periphery of the power shaft is provided with a third limiting step, the second limiting step and the third limiting step are opposite and distributed at intervals along the radial direction of the power shaft, and one side of the second bearing facing the first bearing is simultaneously abutted against the second limiting step and the third limiting step.

7. The power unit of claim 6, further comprising a hole retaining ring disposed on a side of the second bearing facing away from the first bearing.

8. The power device as claimed in claim 1, wherein an oil filling hole is formed in a side wall of the connecting sleeve, and the oil filling hole is communicated with the lubricating oil cavity.

9. The powerplant of claim 1, wherein the motor shaft is splined to the power shaft.

10. A jaw crusher characterised by comprising a power plant as claimed in any one of claims 1 to 9.

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