CN111330673A - Crusher lower frame protection device - Google Patents
Crusher lower frame protection device Download PDFInfo
- Publication number
- CN111330673A CN111330673A CN202010333185.3A CN202010333185A CN111330673A CN 111330673 A CN111330673 A CN 111330673A CN 202010333185 A CN202010333185 A CN 202010333185A CN 111330673 A CN111330673 A CN 111330673A
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- Prior art keywords
- bolt
- assembly
- lower frame
- plate
- crusher
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2/00—Crushing or disintegrating by gyratory or cone crushers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/04—Safety devices
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a crusher lower frame protection device, which comprises a lower frame and also comprises: the rib protection plate is used for protecting a connecting arm of the lower rack and connected with the lower rack through a first bolt assembly; the transmission shaft guard plate is used for protecting a transmission shaft arm of the lower rack and connected with the lower rack through a second bolt assembly; and the ring guard plate assembly is used for protecting the inner cavity wall of the lower rack and is connected with the lower rack through a third bolt component. That is to say, muscle backplate, transmission shaft backplate and ring backplate assembly all with lower frame bolted connection. Compared with the prior art that the lower frame is connected with the guard plate in a welding mode, the lower frame protection device of the crusher is simple and convenient to maintain and operate, and the crusher is not easy to damage.
Description
Technical Field
The invention relates to the technical field of crushing equipment, in particular to a lower rack protection device of a crusher.
Background
The crusher is used as key equipment for crushing and fine crushing of ores (rocks), and is widely applied to the technical fields of mines, water conservancy, building materials, road (railway) construction, sandstone aggregate production and the like. Because the crusher plays a role in lifting weight in the process flow of crushing materials, the requirement on the equipment maintainability of the crusher is higher and higher in order to ensure the crushing efficiency of the crusher.
During maintenance of the crusher, the wear parts are mostly replaced. For example, for a single cylinder hydraulic cone crusher, the replacement of its moving cone liner, fixed cone liner, lower frame guard assembly, and feed hopper liner assembly accounts for a significant portion of the overall maintenance of the crusher.
For a lower frame guard plate assembly of the crusher, the lower frame and the guard plate are usually fixed in a welding mode, and the fixing mode is simple and reliable, and machining is not needed, so that the lower frame guard plate assembly of the crusher is widely applied in practice. When the guard plate is replaced in the later period, the worn part of the guard plate needs to be cut off manually, and then a new guard plate is welded in the original position.
However, because the lower frame is made of a common engineering cast steel material, that is, the lower frame is a cast steel piece, the guard plate is generally a high manganese steel casting or a wear-resistant steel plate, and the like, the lower frame and the guard plate have large deviations relative to respective theoretical dimensions, and therefore, the guard plate and the lower frame cannot be completely attached to each other, and edges are easily warped, and the like, which causes inconvenience in installation; it takes a lot of time and effort to correct the cover sheet before installation, and it is very difficult to correct both the high manganese steel casting and the high hardness wear-resistant steel plate.
Further, when the backplate is installed and demolishd at the scene, need the operation workman to get into and carry out work such as a large amount of welding and flame cutting in the lower frame inner chamber, because the space of lower frame inner chamber is narrow and small, the air permeability is not good, leads to the operation difficulty, produces harmful smoke and dust gathering easily, has further worsened the maintenance environment, causes the harm to operator's healthy easily.
Meanwhile, in the process of cutting and welding the guard plate, as the main shaft in the middle of the lower rack of the crusher is removed and the sliding shaft sleeve is exposed, when the protection is improper, hard foreign matters such as welding slag, scrap iron and the like are easily caused to enter the inner cavity of the crusher, and the crusher is seriously damaged when being started.
In addition, the guard plate is not uniformly worn, and the surface of the inner cavity of the lower frame is uneven due to multiple welding and cutting, so that the installation of a new guard plate is seriously influenced, the protection effect is weakened, and even more, the lower frame is adversely affected by excessive cutting, and the frame is cracked and other faults are caused.
It can be seen that the actual operation of the existing crusher lower frame guard is time consuming and laborious and is prone to damage to the crusher.
Therefore, how to provide a crusher lower frame protection device which is simple in maintenance operation and not easy to damage a crusher is a problem to be solved urgently by those skilled in the art at present.
Disclosure of Invention
In view of this, the invention aims to provide a crusher lower frame protection device, which is simple and convenient to maintain and operate and is not easy to damage a crusher.
In order to achieve the above purpose, the invention provides the following technical scheme:
the utility model provides a breaker undercarriage protector, includes the undercarriage, still includes:
the rib protection plate is used for protecting a connecting arm of the lower rack and connected with the lower rack through a first bolt assembly;
the transmission shaft protection plate is used for protecting a transmission shaft arm of the lower rack and is connected with the lower rack through a second bolt assembly;
and the ring guard plate assembly is used for protecting the inner cavity wall of the lower rack and is connected with the lower rack through a third bolt component.
Preferably, the first bolt assembly and the second bolt assembly are identical in structure, and the first bolt assembly includes:
the first bolt mounting hole is formed in the lower rack;
the first bolt connecting hole is formed in the rib protection plate, and a first counter bore for arranging a first nut is formed in one end of the first bolt connecting hole;
the first bolt is arranged in the first bolt mounting hole and the first bolt connecting hole in a penetrating mode and is used for being screwed with the first nut;
and the first rubber composite washer is arranged between the head of the first bolt and the outer side wall of the lower frame.
Preferably, the first bolt is a hexagon head bolt, and the first nut is a square head spherical nut.
Preferably, the rib guard plate and the transmission shaft guard plate are respectively provided with a positioning pin hole, and the connecting arm and the transmission shaft arm are respectively provided with a positioning pin for matching and positioning with the positioning pin hole.
Preferably, the ring guard plate assembly comprises a plurality of arc guard plates for forming the ring guard plate assembly, and a preset gap is formed between every two adjacent arc guard plates; every the arc backplate is used for towards one side of inner chamber wall all is equipped with the backing plate.
Preferably, the backing plate comprises a first backing plate and a second backing plate, and the first backing plate is provided with a hanging ring hole.
Preferably, the third bolt assembly includes:
a third bolt mounting hole arranged on the lower frame;
the third bolt penetrates through the third bolt mounting hole and is used for being locked with a third nut on the outer side of the lower rack;
the second counter bore is arranged on the arc-shaped protection plate and used for accommodating the head of the third bolt, a bayonet is arranged at the position, corresponding to the second counter bore, of the base plate, and the neck of the third bolt is clamped into the bayonet;
and the third rubber composite washer is arranged between the third nut and the outer side wall of the lower frame.
Preferably, a rubber plate is fixedly arranged on one side of the pad plate, which is in contact with the inner cavity wall.
Preferably, the first rubber composite washer and the third rubber composite washer each comprise a shock-absorbing rubber, and at least one side of the shock-absorbing rubber is connected with a steel plate in a vulcanization mode.
Preferably, the third bolt is a half-head square-neck bolt, and the third nut is a hexagon nut.
According to the lower frame protection device of the crusher, the rib protection plate is connected with the lower frame through the first bolt component, the transmission shaft protection plate is connected with the lower frame through the second bolt component, and the ring protection plate assembly is connected with the lower frame through the third bolt component. That is to say, muscle backplate, transmission shaft backplate and ring backplate assembly all with lower frame bolted connection.
Compared with the prior art that the connection between the lower rack and the guard plate is realized by adopting a welding mode, the bolt connection is convenient to disassemble, when the old rib guard plate, the transmission shaft guard plate and/or the ring guard plate assembly are disassembled at the later stage, only corresponding bolt assemblies (the first bolt assembly and/or the second bolt assembly and/or the third bolt assembly) need to be loosened, when a new rib guard plate, the transmission shaft guard plate and/or the ring guard plate assembly are installed, the corresponding bolt assemblies (the first bolt assembly and/or the second bolt assembly and/or the third bolt assembly) are locked again, the maintenance workload can be effectively reduced, the maintenance time is shortened, and the later maintenance efficiency is improved.
Meanwhile, the bolt connection avoids the damage to the lower frame caused by multiple welding and cutting operations when the rib guard plate, the transmission shaft guard plate and/or the ring guard plate assembly are replaced, and the service life of the lower frame is prolonged; and compared with welding, the bolt connection has low maintenance cost and better comprehensive economic benefit.
In addition, the maintenance operation of the operation workers in narrow and small environments with much smoke dust is avoided, the influence on the personal health of the operation workers is avoided, and the maintenance operation is more humanized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a cut-away view of an embodiment of a crusher lower frame guard provided in accordance with the present invention;
FIG. 2 is a schematic view of the rib protector plate of FIG. 1;
FIG. 3 is a schematic view of the mounting of the propeller shaft guard of FIG. 1;
FIG. 4 is a schematic view of a connection structure of the first bolt assembly of FIG. 1;
FIG. 5 is a schematic view of the ring guard assembly of FIG. 1;
FIG. 6 is a schematic view of a connection structure of the third bolt assembly of FIG. 1;
fig. 7 is a schematic structural view of the first rubber composite gasket and the third rubber composite gasket of fig. 1.
The reference numerals in fig. 1 to 7 are as follows:
1 is the lower frame, 2 is the muscle backplate, 3 is first bolt assembly, 31 is first nut, 32 is first bolt, 33 is first rubber composite washer, 4 is the transmission shaft backplate, 5 is second bolt assembly, 6 is ring protection plate assembly, 61 is first backing plate, 62 is the second backing plate, 63 is the rubber slab, 7 is third bolt assembly, 71 is the third nut, 72 is the third bolt, 73 is third rubber composite washer, 8 is the locating pin, 91 is yielding rubber, 92 is the steel sheet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The core of the invention is to provide the lower frame protection device of the crusher, which is simple and convenient to maintain and operate and is not easy to damage the crusher.
Referring to fig. 1-7, fig. 1 is a cut-away view of an embodiment of a crusher lower frame guard according to the present invention; FIG. 2 is a schematic view of the installation of the ribbed guard plate; FIG. 3 is a schematic view of the installation of the propeller shaft guard; FIG. 4 is a schematic view of a connection structure of the first bolt assembly; FIG. 5 is a schematic structural view of the ring guard assembly; FIG. 6 is a schematic view of the connection structure of the third bolt assembly; fig. 7 is a schematic structural view of the first rubber composite gasket and the third rubber composite gasket.
The invention provides a lower frame protection device of a crusher, which can be used for a single-cylinder hydraulic cone crusher or a multi-cylinder hydraulic cone crusher and the like, and mainly comprises a lower frame 1, a rib protection plate 2, a transmission shaft protection plate 4, a ring protection plate assembly 6 and the like.
Specifically, the rib protection plate 2 is arranged on a connecting arm of the lower frame 1 and used for protecting the connecting arm; the transmission shaft guard plate 4 is arranged on a transmission shaft arm of the lower frame 1 and used for protecting the transmission shaft arm; the ring guard plate assembly 6 is arranged on the inner cavity wall of the lower frame 1 and is used for protecting the inner cavity wall; so as to prevent the materials from scouring the connecting arm, the transmission shaft arm and the inner cavity wall of the lower frame 1 when the crusher works, and play a role in protecting the lower frame 1.
It should be noted that the main structure of the lower frame 1 can refer to the structure of the lower frame 1 of the conventional crusher in the prior art, and the present invention is not limited in particular. For example, as shown in fig. 1, a plurality of connecting arms are provided in the inner cavity of the lower frame 1, and the lower frame 1 is provided with a transmission shaft arm.
Note that the rib guards 2 are provided to cover the plurality of connecting arms.
The key point of the invention is that the rib protection plate 2 is connected with the lower frame 1 through the first bolt component 3, the transmission shaft protection plate 4 is connected with the lower frame 1 through the second bolt component 5, and the ring protection plate assembly 6 is connected with the lower frame 1 through the third bolt component 7. That is, the rib guard plate 2, the transmission shaft guard plate 4 and the ring guard plate assembly 6 are all connected with the lower frame 1 through bolts.
Compared with the prior art, the connection between the lower rack 1 and the guard plate is realized by adopting a welding mode, the bolt connection is convenient to disassemble, when the old rib guard plate 2 and the transmission shaft guard plate 4 and/or the ring guard plate assembly 6 are disassembled at the later stage, only corresponding bolt assemblies (the first bolt assembly 3 and/or the second bolt assembly 5 and/or the third bolt assembly 7) need to be loosened, when a new rib guard plate 2 and the transmission shaft guard plate 4 and/or the ring guard plate assembly 6 are installed, corresponding bolt assemblies (the first bolt assembly 3 and/or the second bolt assembly 5 and/or the third bolt assembly 7) are locked again, the maintenance workload can be effectively reduced, the maintenance time is shortened, and the later-stage maintenance efficiency is improved.
Meanwhile, the bolt connection avoids damage to the lower frame 1 caused by multiple welding and cutting operations when the rib guard plate 2, the transmission shaft guard plate 4 and/or the ring guard plate assembly 6 are replaced, and the service life of the lower frame 1 is prolonged; and compared with welding, the bolt connection has low maintenance cost and better comprehensive economic benefit.
In addition, the maintenance operation of the operation workers in narrow and small environments with much smoke dust is avoided, the influence on the personal health of the operation workers is avoided, and the maintenance operation is more humanized.
It should be noted that, the number and the distribution of the first bolt assembly 3, the second bolt assembly 5 and the third bolt assembly 7 are not specifically limited, and those skilled in the art can select the number and the distribution according to actual needs.
As shown in fig. 4, in consideration of the realization of the specific structure of the first bolt assembly 3, as a preferable solution, on the basis of the above-described embodiment, the first bolt assembly 3 includes a first bolt mounting hole provided in the lower frame 1, a first bolt coupling hole provided in the gusset 2, a first nut 31, a first bolt 32, and a first rubber composite washer 33.
One end of the first bolt connection hole is provided with a first counter bore, and the first nut 31 is clamped into the first counter bore.
Preferably, the first counterbore is a square first counterbore. On the basis, one end of the first bolt connecting hole, which faces the first counter bore, is spherical so as to be matched with the square-head spherical nut.
Further, the first bolt 32 is preferably a hexagon head bolt.
During installation, first bolt 32 penetrates first bolt mounting hole and first bolt connecting hole in proper order from the outside of lower frame 1 to with first nut 31 threaded connection, in order to realize the fixed connection of muscle backplate 2 and lower frame 1 through first bolt 32.
Preferably, the apron 2 is cast with the first bolt-attaching hole.
In addition, as a preferable scheme, a first rubber compound washer 33 is disposed between the head of the first bolt 32 and the outer side wall of the lower frame 1 to effectively ensure the locking of the first bolt 32 and to play a certain role of shock absorption.
In view of the realization of the specific structure of the second bolt assembly 5, on the basis of the above-described embodiment, the first bolt assembly 3 and the second bolt assembly 5 have the same structure, and for example, the second bolt assembly 5 includes a second bolt mounting hole provided in the lower frame 1, a second bolt connecting hole provided in the propeller shaft guard 4, a second nut, a second bolt, and a second rubber composite washer. The structures of the second nut, the second bolt, and the second rubber composite washer may be the same as the structures of the first nut 31, the first bolt 32, and the first rubber composite washer 33, respectively, and the assembly method of the second bolt assembly 5 may be the same as the assembly method of the first bolt assembly 3.
That is, the rib protector 2 and the propeller shaft protector 4 are fixed to the lower frame 1 by the same bolt assembly.
In addition, in order to avoid the side turning of the rib guard plate 2 and the transmission shaft guard plate 4 due to material impact, on the basis of the above embodiment, the rib guard plate 2 and the transmission shaft guard plate 4 are respectively provided with a positioning pin hole, and the connecting arm and the transmission shaft arm are respectively provided with a positioning pin 8 for positioning in cooperation with the positioning pin hole.
That is to say, this embodiment restricts the relative position between muscle backplate 2 and linking arm and transmission shaft backplate 4 and the transmission shaft arm through the cooperation of locating pin 8 with the locating pin hole, avoids muscle backplate 2 and transmission shaft backplate 4 to turn on one's side under the material is strikeed.
It should be noted that, this embodiment does not specifically limit the number of the positioning pin holes formed in the rib guard plate 2 and the transmission shaft guard plate 4, that is, the positions of the rib guard plate 2 and the transmission shaft guard plate 4 may be respectively limited by matching a plurality of pairs of positioning pin holes with the positioning pins 8.
Preferably, the locating pins 8 are welded to the connecting arm and the drive shaft arm, respectively.
For example, when the rib protection plate 2 is installed for the first time, the rib protection plate 2 is installed on the connecting arm and the position is adjusted, the position of the positioning pin 8 on the connecting arm is located through the positioning pin hole in the rib protection plate 2, marking is made, then the rib protection plate 2 is lifted away from the connecting arm, the positioning pin 8 is welded to the marked position, after welding is completed, the rib protection plate 2 is installed on the connecting arm, it is ensured that the positioning pin 8 on the connecting arm is inserted into the corresponding positioning pin hole in the rib protection plate 2, and positioning of the rib protection plate 2 can be achieved.
When the new muscle backplate 2 is changed in the later stage, it can directly be with the locating pin hole alignment of new muscle backplate 2 insert the locating pin 8 on the linking arm.
Similarly, the position of the positioning pin 8 on the transmission shaft arm can be positioned in the above manner, so as to ensure the correctness of the welding position of the positioning pin 8.
In order to facilitate the installation of the rib guard plate 2 and the transmission shaft guard plate 4, on the basis of the above embodiment, the rib guard plate 2 and the transmission shaft guard plate 4 are both provided with lifting lugs so as to conveniently realize the installation of the rib guard plate 2 and the transmission shaft guard plate 4 in place or take away the old rib guard plate 2 and the transmission shaft guard plate 4 in a hoisting manner.
As shown in fig. 5, in order to facilitate the installation of the ring guard assembly 6 on the inner cavity wall of the lower frame 1, on the basis of the above embodiment, the ring guard assembly 6 includes a plurality of arc guards for forming the ring guard assembly 6, and a predetermined gap is provided between two adjacent arc guards; one side of each arc-shaped protection plate, which faces the inner cavity wall, is provided with a backing plate.
It can be understood that the ring guard assembly 6 is formed by assembling a plurality of arc guard plates into a whole ring. Have between two adjacent arc backplate and predetermine the clearance to mutual interference between the arc backplate when avoiding each arc backplate installation.
Further, the backing plate that the arc backplate was used for setting up towards one side of inner chamber wall can make and have certain clearance between arc backplate and the 1 inner chamber wall of lower frame, and this has reduced the requirement to the fitting surface between arc backplate and the 1 inner chamber wall of lower frame, and then can compensate the manufacturing error between arc backplate and the lower frame 1, makes the installation of arc backplate convenient and fast more.
In view of the convenience of hoisting the arc-shaped guard plate, on the basis of the above embodiment, the backing plate comprises a first backing plate 61 and a second backing plate 62, and the first backing plate 61 is provided with a suspension ring hole. That is, the first base plate 61 is also used for hoisting the arc-shaped protection plate at the same time, so as to facilitate the installation of the arc-shaped protection plate.
Preferably, the top end of the first pad 61 is bent at a predetermined angle.
As shown in fig. 6, in consideration of the implementation of the specific structure of the third bolt assembly 7, on the basis of the above embodiment, the third bolt assembly 7 includes a third bolt mounting hole provided in the lower frame 1, a second counter bore provided in the arc-shaped guard plate, a bayonet provided in the backing plate, a third bolt 72, a third nut 71, and a third rubber composite washer 73.
Specifically, the second counter bore is used for arranging a head of the third bolt 72, the bayonet is arranged corresponding to the second counter bore, and the bayonet is used for being clamped into a neck of the third bolt 72.
During installation, the third bolt 72 penetrates the second counter bore, the bayonet and the third bolt mounting hole from the inner side of the arc-shaped guard plate in sequence, and then is in threaded connection with the third nut 71 positioned on the outer side of the lower rack 1, so that the arc-shaped guard plate is fixedly connected with the lower rack 1.
Preferably, the third bolt 72 is a half-headed square-neck bolt, and correspondingly, the bayonet is a square bayonet to be snapped into the square neck of the third bolt 72.
Preferably, the third nut 71 is a hexagonal nut.
In addition, as a preferable scheme, a third rubber composite washer 73 is disposed between the third nut 71 and the outer sidewall of the lower frame 1 to ensure the locking force of the third bolt 72 and to play a certain role in shock absorption.
It should be noted that the structures of the first rubber composite washer 33, the second rubber composite washer and the third rubber composite washer 73 may be the same or different, and as a preferable configuration, on the basis of the above embodiment, the first rubber composite washer 33, the second rubber composite washer and the third rubber composite washer 73 each include the cushion rubber 91, and at least one side of the cushion rubber 91 is connected with the steel plate 92 by vulcanization.
Preferably, as shown in fig. 7, steel plates 92 are vulcanization-bonded to both sides of the cushion rubber 91.
It can be understood that the rubber composite gasket with the structure has a damping effect on one hand, and has a strong pressure bearing surface which is not easy to crush and the like on the other hand.
In addition, in order to avoid the head of the third bolt 72 from being worn and causing the arc-shaped protection plate to be loosened, on the basis of the above embodiment, the rubber plate 63 is fixedly arranged on the side of the cushion plate, which is used for contacting with the inner cavity wall of the lower frame 1.
Preferably, the rubber sheet 63 is a self-adhesive rubber sheet 63, i.e., the rubber sheet 63 may be directly adhered to the backing sheet.
This rubber slab 63 can prevent that the bolt head from wearing and tearing, avoids causing the arc backplate pine to take off.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The crusher lower frame protection device provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a breaker undercarriage protector, includes undercarriage (1), its characterized in that still includes:
the rib protection plate (2) is used for protecting a connecting arm of the lower rack (1), and the rib protection plate (2) is connected with the lower rack (1) through a first bolt assembly (3);
the transmission shaft protection plate (4) is used for protecting a transmission shaft arm of the lower rack (1), and the transmission shaft protection plate (4) is connected with the lower rack (1) through a second bolt assembly (5);
the ring guard plate assembly (6) is used for protecting the inner cavity wall of the lower rack (1), and the ring guard plate assembly (6) is connected with the lower rack (1) through a third bolt assembly (7).
2. A crusher lower stand guard as claimed in claim 1, characterised in that the first bolt assembly (3) and the second bolt assembly (5) are structurally identical, the first bolt assembly (3) comprising:
the first bolt mounting hole is formed in the lower rack (1);
the first bolt connecting hole is formed in the rib protection plate (2), and a first counter bore for arranging a first nut (31) is formed in one end of the first bolt connecting hole;
a first bolt (32) which is arranged in the first bolt mounting hole and the first bolt connecting hole in a penetrating manner and is used for being screwed with the first nut (31);
and a first rubber composite washer (33) arranged between the head of the first bolt (32) and the outer side wall of the lower frame (1).
3. A crusher lower stand guard according to claim 2, characterised in that the first bolt (32) is a hex head bolt and the first nut (31) is a square head ball nut.
4. The crusher lower frame guard according to claim 2, characterized in that the web guard (2) and the transmission shaft guard (4) are respectively provided with a positioning pin hole, and the connecting arm and the transmission shaft arm are respectively provided with a positioning pin (8) for positioning in cooperation with the positioning pin hole.
5. A crusher lower frame guard according to any one of claims 2 to 4, characterised in that the ring guard assembly (6) comprises a plurality of arc guards forming the ring guard assembly (6), and a preset gap is provided between two adjacent arc guards; every the arc backplate is used for towards one side of inner chamber wall all is equipped with the backing plate.
6. A crusher lower stand guard according to claim 5, characterised in that the shim plates comprise a first shim plate (61) and a second shim plate (62), the first shim plate (61) being provided with a eye of a lifting ring.
7. A crusher lower stand guard according to claim 5, characterised in that the third bolt assembly (7) comprises:
a third bolt mounting hole arranged on the lower frame (1);
a third bolt (72) which penetrates through the third bolt mounting hole and is used for being locked with a third nut (71) on the outer side of the lower frame (1);
the second counter bore is arranged on the arc-shaped protection plate and used for accommodating the head of the third bolt (72), a bayonet is arranged at the position, corresponding to the second counter bore, of the base plate, and the neck of the third bolt (72) is clamped into the bayonet;
and the third rubber composite washer (73) is arranged between the third nut (71) and the outer side wall of the lower frame (1).
8. A crusher lower stand guard as claimed in claim 7 characterised in that a rubber plate (63) is fixed to the side of the pad which is intended to contact the inner chamber wall.
9. A crusher lower stand guard according to claim 7, characterised in that the first rubber compound washer (33) and the third rubber compound washer (73) each comprise a shock-absorbing rubber (91), at least one side of the shock-absorbing rubber (91) being vulcanised with a steel plate (92).
10. A crusher lower stand guard according to claim 7, characterised in that the third bolt (72) is a half-headed square-neck bolt and the third nut (71) is a hexagonal nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010333185.3A CN111330673A (en) | 2020-04-24 | 2020-04-24 | Crusher lower frame protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010333185.3A CN111330673A (en) | 2020-04-24 | 2020-04-24 | Crusher lower frame protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111330673A true CN111330673A (en) | 2020-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010333185.3A Pending CN111330673A (en) | 2020-04-24 | 2020-04-24 | Crusher lower frame protection device |
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|---|---|
| CN (1) | CN111330673A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112833186A (en) * | 2021-02-23 | 2021-05-25 | 浙江双金机械集团股份有限公司 | Novel single-cylinder hydraulic cone crusher and method |
-
2020
- 2020-04-24 CN CN202010333185.3A patent/CN111330673A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112833186A (en) * | 2021-02-23 | 2021-05-25 | 浙江双金机械集团股份有限公司 | Novel single-cylinder hydraulic cone crusher and method |
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