CN212441449U - Anti-leakage bolt assembly for fixing wear-resistant lining plate of ball mill - Google Patents

Abstract

The utility model discloses a fixed wear-resisting welt of ball mill prevents leaking bolt assembly, including ball-milling casing and welt, it is provided with the screw rod to run through on ball-milling casing and the welt, the surface screw thread cover of screw rod is equipped with the nut. This anti-leakage bolt assembly of fixed wear-resisting welt of ball mill, through the disposable fastening of anti-leakage bolt assembly with the fixed wear-resisting welt of ball mill, utilize the tension of spring to apply certain pressure for O type circle all the time through the gasket, let O type circle remain unanimous compression deformation rate all the time under the nut and the axle condition of ball mill section of thick bamboo wall, the guarantee is sealed, thereby prevent the emergence of ore pulp leakage accident, be favorable to ball-milling equipment high efficiency operation safety, the small and exquisite light of this patent design, easily carry, the installation is dismantled the annex less, can effectively reduce and stop the ore pulp and leak, alleviate worker intensity of labour, increase on-the-.

Description

Anti-leakage bolt assembly for fixing wear-resistant lining plate of ball mill

Technical Field

The utility model relates to a mechanized production technology field specifically is a fixed wear-resisting welt of ball mill prevents leaking bolt assembly.

Background

The current ball mill is the important equipment that the ore dressing trade used the popularization, it is the wet process ore dressing plant that the ore industry used, one of the essential large-scale important mining machinery, it all utilizes the rotation of ball mill to use the correct grinding process in ore dressing trade and other grinding trades, bring steel ball and ore in the ball mill to certain height after, produce the free fall motion, produce the striking each other between ore and steel ball and the inside welt three of ball mill barrel, it is the fine particle form to break into the ore, the condition emergence that the ore pulp was revealed can take place in part welt fixing bolt department in the ore milling process, because all ball mills when designing, the emergence of following several kinds of troubles often appears in the operation process of not having abundant consideration ball milling, the problem is as follows:

1. original tower rubber seal receives under the locking state of long-time bowl type gland, just lose elasticity about two months, if rubber seal loses under the elastic condition, the bolt of the inboard welt of fixed ball mill barrel will become flexible, if the bolt of fixed welt in case become flexible will take place the inside ore pulp of ball mill barrel and leak, under the high-speed moving condition of ball-milling, the inside ore pulp of ball-milling will be thrown away through the bolt hole on the ball-milling casing and fixing bolt's clearance, fixing bolt on the ball-milling is few then has hundreds, many then have thousands, if there are several fixing bolt to reveal the ore pulp simultaneously, whole operation platform and the site operation's of ball-milling equipment can all receive the pollution, cause abominable influence to the environment at scene.

2. After the novel wear-resistant lining plate of the ball mill runs for a period of time in the ball mill, because the lining plate inside the ball mill is continuously worn and collided by ores and steel balls in the production process, the clearance between the lining plate and a cylinder body of the ball mill and the clearance between the T-shaped tail part of the screw and a fixing hole of the lining plate can disappear, and part of bolts for fixing the lining plate can axially loosen.

3. The ball milling lining plate bolt loosening is found in the operation process, the parking is needed for fastening operation, if the fastening is not adopted, the lining plate bolt loosening is serious, ore pulp inside the ball milling can be leaked and splashed out along the bolt hole of the cylinder and the gap of the fixing bolt, the labor intensity of operators is increased while the environment around the ore milling equipment is polluted, potential hazards are brought to safety production, 2-3 workers are needed to be matched simultaneously in the process of fastening the bolt loosening part in the parking, about 30 minutes is needed, and great potential safety hazards and great economic loss are brought to production and safety.

4. After the process of fastening the lining plate bolt of the ball mill barrel is finished, the production is recovered, and other auxiliary facilities in the whole process can generate chain adverse reaction due to the rapid change of the ore feeding amount, so that the safety production is seriously influenced.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a ball mill is fixed to wear-resisting welt prevents leaking bolt assembly, solved under the locking state that original tower type rubber seal received long-time bowl type gland, just lose elasticity about two months, simultaneously in the production process the inside welt of ball-milling passes through the continuous wearing and tearing of ore and steel ball, need more renew the welt, discover ball-milling welt bolt is not hard up at the operation in-process simultaneously and just need park and fasten the operation, and after the barrel welt fastening bolt process of ball-milling, need start a series of problems that bring to the ball-milling.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a fixed wear-resisting welt of ball mill prevents leaking bolt assembly, includes ball-milling casing and welt, it is provided with the screw rod to run through on ball-milling casing and the welt, the surface thread cover of screw rod is equipped with the nut, the surface of screw rod just is located and is equipped with the stop collar between nut and the ball-milling casing, the surface of screw rod just is located the stop collar endotheca and is equipped with the spring, the bottom of stop collar is provided with the gasket, be provided with built-in space on the gasket, be provided with O type circle between gasket and the ball-milling casing, and O.

Preferably, the O-shaped ring is an anti-corrosion and anti-aging butadiene acrylonitrile rubber O-shaped ring, and the specification changes along with the change of the diameter of the bolt.

Preferably, the screw cap is a screw cap corresponding to the diameter of the screw rod, and the screw rod is manufactured while the diameter of the threaded part of the screw thread is consistent with that of the polished rod part of the screw rod, and the polished rod part of the screw rod is smooth.

(III) advantageous effects

The utility model provides a ball mill is fixed prevents leaking bolt assembly of wear-resisting welt. The method has the following beneficial effects: this anti-leakage bolt assembly of fixed wear-resisting welt of ball mill, through the disposable fastening of anti-leakage bolt assembly with the fixed wear-resisting welt of ball mill, utilize the tension of spring to apply certain pressure for O type circle all the time through the gasket, let O type circle remain unanimous compression deformation rate all the time under the nut and the axle condition of ball mill section of thick bamboo wall, the guarantee is sealed, thereby prevent the emergence of ore pulp leakage accident, be favorable to ball-milling equipment high efficiency operation safety, the small and exquisite light of this patent design, easily carry, the installation is dismantled the annex less, can effectively reduce and stop the ore pulp and leak, alleviate worker intensity of labour, increase on-the-.

Drawings

FIG. 1 is a front view of a prior art ball mill;

FIG. 2 is a half sectional view of a left side view of a prior art ball mill;

FIG. 3 is a cross-sectional view of a prior art anchor stud;

FIG. 4 is a cross-sectional view of the anti-seepage bolt assembly of the ball mill of the utility model;

fig. 5 is a front view of the gasket of the present invention;

FIG. 6 is a schematic view of the built-in space position provided on the gasket of the present invention;

FIG. 7 is a front view of the stop collar of the present invention;

fig. 8 is a cross-sectional view of the top view of the stop collar of the present invention.

In the figure: 1. a gasket; 2. an O-shaped ring; 3. a spring; 4. a nut; 5. a screw; 6. a limiting sleeve; 7. a ball mill shell; 8. a liner plate; 9. a bowl-shaped gland; 10. a tower-type rubber seal; 11. a built-in space.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides a technical solution: a leakproof bolt component for fixing a wear-resistant lining plate of a ball mill comprises a ball mill shell 7 and a lining plate 8, wherein a screw rod 5 penetrates through the ball mill shell 7 and the lining plate 8, a nut 4 is sleeved on the surface of the screw rod 5 in a threaded manner, the nut 4 adopts a nut with the diameter corresponding to that of the screw rod, meanwhile, the diameter of the threaded screw thread part and the diameter of the polished rod part of the screw rod 5 are kept consistent when the ball-milling ball.

In the prior art, the anti-leakage bolt assembly of the fixed wear-resisting lining plate of the ball mill comprises a ball mill shell 7 and a lining plate 8, wherein a screw rod 5 is arranged on the ball mill shell 7 and the lining plate 8 in a penetrating mode, a nut 4 is sleeved on the surface of the screw rod 5 in a threaded mode, a tower-shaped rubber sealing element 10 is sleeved on the surface of the screw rod 5 and located between the nut 4 and the ball mill shell 7 in a sleeved mode, and a bowl-shaped gland 9 is arranged on the tower-shaped rubber.

The utility model discloses in, the fixed wear-resisting welt of ball mill prevents leaking bolt assembly by gasket 1, O type circle 2, spring 3, nut 4, screw rod 5, stop collar 6, ball-milling casing 7, welt 8, bolt assembly bowl type gland 9 and tower type rubber seal 10 are constituteed, gasket 1 and ball-milling casing 7 fasten and form a complete subassembly through fixing bolt assembly, installation O type circle 2 between gasket 1 and ball-milling casing 7, O type circle 2 chooses for use the anticorrosion, ageing-resistant butyl fine rubber O type circle, in the actual production, the specification of adoption is internal diameter 28mm, line footpath 10 mm.

The gasket 1 is processed into installation spare parts in the shapes of figures 5 and 6, the spare part space specially processed is matched with the chamfer angle of the bolt hole of the ball mill shell 7 in a seamless clearance fit mode, the specially processed O-shaped ring 2 is deformed by compressing the O-shaped ring 2 through a bolt assembly, the internal pressure is formed by the elasticity of the spring 3, a seamless space between the gasket 1 and the ball mill shell 7 is formed under the action of the pressure of the spring 3, the fastening performance of a lining plate 8 in the ball mill is stronger and better when the bolt assembly outside the ball mill shell 7 is fastened, the size of the seamless space between the gasket 1 and the ball mill shell 7 needs to be calculated through the requirement of the seamless space after the bolt assembly is fastened, the O-shaped ring 2 is ensured to be reasonably compressed and deformed under the state that the gasket 1 and the ball mill barrel are tightly pressed, the axial size of the effective space is too large, and the pressure on the O-shaped ring 2, losing its sealing effect. The axial dimension of the effective space is too small, so that the O-shaped ring 2 is easily compressed excessively, damaged and loses the sealing effect. The radial dimension of the effective space cannot be too small, and when the radial dimension is too small, a part of the O-shaped ring overflows the effective space when being compressed and deformed, so that extrusion damage is caused. The radial dimension of the effective space is overlarge, the directional extrusion function of the O-shaped ring is lost, and the sealing effect of the O-shaped ring cannot be effectively exerted.

The utility model provides a nut 4 of leak protection bolt assembly of fixed wear-resisting welt of ball mill adopts the M30 nut, because O type circle 2 is under the thrust effect of gasket 1, and radial inward movement is all the time along the ball mill, and nut 4 becomes flexible and can be along the radial outward movement of ball mill to make O type circle 2 and screw rod 5 move in opposite directions and produce the friction (consequently need ensure that the polished rod position surface of screw rod is smooth).

Installing gasket 1 on the upper portion of O type circle 2, be close to 1 upper portion installation stop collar 6 of gasket, at 6 internally mounted springs 3 of stop collar, stop collar 6 has dual function, protect springs 3 not excessively compressed promptly in the fastening process, it causes the damage to produce permanent deformation and lose elasticity, power transmission when having guaranteed again the nut fastening gives ball-milling casing 7, apply certain pressure for O type circle 2 all the time through gasket 1 when fastening bolt subassembly make full use of spring 3's tension, let O type circle 2 remain unanimous compression deformation rate all the time under the condition of nut 4 and ball mill section of thick bamboo wall axial interval increase 30mm-40mm, thereby guarantee effective sealing.

To sum up, this leak-proof bolt assembly of fixed wear-resisting welt of ball mill, once only fasten through the leak-proof bolt assembly with the fixed wear-resisting welt of ball mill, utilize the tension of spring 3 to apply certain pressure for O type circle 2 all the time through gasket 1, let O type circle 2 remain unanimous compression deformation rate all the time under the screw cap 4 and the axle circumstances of ball mill section of thick bamboo wall, the guarantee is sealed, thereby prevent the emergence of ore pulp leakage accident, be favorable to ball-milling equipment high efficiency operation safety, this patent design is small and exquisite light, easily carry, the installation is dismantled the annex less, can effectively reduce and stop the ore pulp and leak, alleviate worker intensity of labour, increase on-the-.

It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (3)

1. The utility model provides a ball mill is fixed prevents leaking bolt assembly of wear-resisting welt, includes ball mill casing (7) and welt (8), its characterized in that: run through on ball-milling casing (7) and welt (8) and be provided with screw rod (5), the surface screw thread cover of screw rod (5) is equipped with nut (4), the surface of screw rod (5) just is located and is equipped with stop collar (6) between nut (4) and ball-milling casing (7), the surface of screw rod (5) just is located stop collar (6) endotheca and is equipped with spring (3), the bottom of stop collar (6) is provided with gasket (1), be provided with built-in space (11) on gasket (1), be provided with O type circle (2) between gasket (1) and ball-milling casing (7), and O type circle (2) set up in built-in space (11).

2. A leak-proof bolt assembly for a ball mill fixing wear liner as defined in claim 1, wherein: the O-shaped ring (2) is an anti-corrosion and anti-aging butadiene acrylonitrile rubber O-shaped ring, and the specification changes along with the change of the diameter of the bolt.

3. A leak-proof bolt assembly for a ball mill fixing wear liner as defined in claim 1, wherein: the screw cap (4) is a screw cap corresponding to the diameter of the screw rod, and the screw rod (5) is manufactured to keep the diameter of the threaded part of the screw thread consistent with that of the polished rod part and ensure that the polished rod part of the screw rod is smooth.

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