Convenient maintenance type explosion-proof motor

Abstract

The utility model relates to the technical field of explosion-proof motors, in particular to a convenient maintenance type explosion-proof motor, which comprises a motor base, a front end cover is arranged at one end of the motor base, a fan cover is arranged at the other end of the motor base, and second annular positioning pieces are fixedly mounted on the outer walls of one ends, close to the motor base, of the fan cover and the front end cover. According to the explosion-proof motor convenient to maintain, the motor base, the fan cover, the front end cover, the limiting hoop, the upper fixing block, the lower fixing block, a first annular positioning piece, a second annular positioning piece, a locking block, a tooth groove, a locking groove, a movable block, a pull ring, a positioning column, a groove, a second spring, a sliding block, a sliding hole and a sliding groove are used in cooperation; aiming at the installation mode of the fan cover and the front end cover, a traditional multi-bolt installation mode is abandoned, and the fan cover and the front end cover can be efficiently and rapidly fixed and disassembled at the two ends of the machine base through the limiting hoop.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of explosion -proof motor, concretely is a kind of explosion -proof motor of convenient maintenance type. BACKGROUND

[0002] Under the background of the vigorous development of modern industry, as the power core of various mechanical equipment, the performance and safety of motor are crucial. Especially in the special dangerous environment of chemical industry, coal mine, petroleum and other flammable and explosive substances, the use of explosion-proof motor becomes the key link to ensure production safety.

[0003] In the existing explosion-proof motor, the fan cover and the front end cover are usually fixed together with the base by bolts. This fixing method needs to tighten or loosen multiple bolts one by one during installation and disassembly, which is cumbersome and time-consuming, especially in situations that require frequent maintenance, which greatly reduces the maintenance efficiency. In addition, the connection method of bolt fixation may loosen after long-term use, affecting the sealing and explosion-proof performance of the motor.

[0004] Therefore, it is necessary to provide a convenient maintenance type explosion-proof motor to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a convenient maintenance type explosion-proof motor to solve the problems raised in the above background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A convenient maintenance type explosion-proof motor comprises:

[0008] The base is provided with a front end cover at one end and a fan cover at the other end. The outer wall of the base at one end is fixedly installed with a second annular positioning member, and the outer wall of the base at both ends is fixedly installed with a first annular positioning member. The connection part of the base with the fan cover and the front end cover is provided with a limiting hoop.

[0009] The limiting hoop is composed of two half-ring plates. The rear end connection part of the limiting hoop is provided with a hinge. The front end connection part of the limiting hoop is fixedly installed with an upper fixed block and a lower fixed block respectively. The inner surface of the limiting hoop is provided with a groove, and the limiting hoop is clamped on the outer wall of the first annular positioning member and the second annular positioning member through the groove.

[0010] The bottom of the upper fixed block is fixedly installed with a locking block. The top of the lower fixed block is provided with a locking groove, and the locking groove is clamped with the locking block. The lower fixed block is provided with a locking mechanism.

[0011] Preferably, a plurality of limiting rods are equidistantly and uniformly fixed on one side of the second annular positioning member close to the first annular positioning member, a plurality of limiting grooves corresponding in position and number to the limiting rods are formed on one side of the first annular positioning member close to the second annular positioning member, and the limiting grooves are connected with the limiting rods.

[0012] Preferably, the groove is composed of a rectangular groove and a trapezoidal groove, the rectangular groove is matched with the first annular positioning member and the second annular positioning member, and the width of the trapezoidal groove gradually decreases from outside to inside.

[0013] Preferably, the locking mechanism comprises two sliding holes, the two sliding holes are symmetrically arranged on the two sides of the lower fixed block, a positioning column is slidably connected with each of the two sliding holes, a sliding groove is formed in the bottom of the inner wall of the sliding hole, a sliding block is slidably arranged in the sliding groove, a second spring is fixedly arranged on one side of the sliding groove, the sliding block is fixedly connected with the positioning column, a plurality of tooth grooves are formed on the two sides of the locking block, the tooth grooves are connected with the positioning column, and movable blocks are fixedly arranged at the opposite ends of the two positioning columns.

[0014] Preferably, clamping blocks are fixedly arranged on the two sides of the lower fixed block above the movable blocks, a clamping groove is formed in the bottom of the clamping block, a fixing groove is formed in the top of the movable block, a vertical rod is slidably connected with the fixing groove, the vertical rod is connected with the clamping groove, a first spring is fixedly arranged in the fixing groove at the bottom end of the vertical rod, a through groove is formed in the side of the movable block away from the lower fixed block, a connecting rod is fixedly arranged on the outer wall of the vertical rod, one end of the connecting rod extends to the outside of the movable block through the through groove, and a pull ring is fixedly arranged at one end of the connecting rod.

[0015] Preferably, the opposite ends of the two positioning columns are inclined, and the positioning column is matched with the tooth groove.

[0016] Preferably, an anti-skid sleeve is arranged on the outer wall of the pull ring.

[0017] Preferably, the inner diameter of the limiting hoop is matched with the outer diameter of the machine base, the wind cover and the front end cover, and sealing pads are arranged on the two sides of the inner surface of the limiting hoop.

[0018] Compared with the prior art, the utility model has the advantages that:

[0019] 1.The utility model discloses a cooperation of base, fan cover, front end cover, limit hoop, upper fixed block, lower fixed block, first annular positioning piece, second annular positioning piece, locking block, tooth groove, locking groove, movable block, pull ring, positioning column, recess, second spring, sliding block, sliding hole and sliding slot, and the explosion -proof motor is discarded the traditional multi -bolt mounting mode to the mounting mode of fan cover and front end cover in actual use, and the limit hoop can be fixed and disassembled operation of fan cover and front end cover at the both ends of base efficiently, quickly, in addition, the locking mechanism on limit hoop is easy to operate, need not help any tool, can realize the unfolding and closing function of limit hoop, convenient to use, save time and reduce the labor intensity, improve the maintenance efficiency of motor significantly.

[0020] 2.The utility model discloses the cooperation of clamping piece, card slot, vertical rod, connecting rod, first spring, fixed slot and through slot, make positioning column not only rely on the elastic force of second spring and be combined in tooth groove, through the clamping cooperation of vertical rod and card slot, can further fixed positioning column. This double -fixed mode effectively enhances the stability of positioning column and tooth groove clamping, and further improves the stability of limit hoop to the fixed state of fan cover and front end cover, when needing to release the clamping between vertical rod and card slot, operating personnel can directly pull down the pull ring, and this operation will not increase the complicated step additionally. The staff still can adjust the position of vertical rod and positioning column in turn through the operation of pull ring, thereby realizing the operation of limit hoop unfolding or closing quickly, and the whole process is convenient and fast, and has higher practicality. ACCURACY OF DRAWINGS

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

[0022] Figure 2 It is the front view cross section structure schematic diagram of the utility model;

[0023] Figure 3 It is the side view structure schematic diagram of limit hoop in the utility model;

[0024] Figure 4 It is the cross section structure schematic diagram of upper fixed block and lower fixed block junction in the utility model;

[0025] Figure 5 It is the Figure 2 enlarged structure schematic diagram of A place in the utility model;

[0026] Figure 6 It is the Figure 4 enlarged structure schematic diagram of B place in the utility model.

[0027] In the figure: 1, base; 2, fan cover; 3, front end cover; 4, limiting hoop; 5, upper fixed block; 6, lower fixed block; 7, first annular positioning member; 8, second annular positioning member; 9, locking block; 10, tooth groove; 11, locking groove; 12, movable block; 13, pull ring; 14, clamping block; 15, positioning column; 16, groove; 17, limiting rod; 18, limiting groove; 19, clamping groove; 20, vertical rod; 21, connecting rod; 22, first spring; 23, fixed groove; 24, second spring; 25, sliding block; 26, sliding hole; 27, sliding groove; 28, through groove. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the following will further describe the utility model in combination with specific embodiments.

[0029] In the description of the utility model, it should be pointed out that the orientation or position relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like is the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0030] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication between two elements inside. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] The technical solutions in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary skilled persons in the art without creative labor belong to the scope of protection of the utility model.

[0032] Please refer to Figures 1-6 The utility model provides an embodiment:

[0033] A convenient maintenance type explosion-proof motor comprises:

[0034] The base 1 is provided with a front end cover 3 at one end thereof, and a wind cover 2 at the other end thereof. The wind cover 2 and the front end cover 3 are both fixedly installed on the outer wall near the one end of the base 1, and both are provided with a second annular positioning member 8. The outer wall of the base 1 at both ends is fixedly installed with a first annular positioning member 7. The connecting part of the base 1 with the wind cover 2 and the front end cover 3 is provided with a limiting hoop 4.

[0035] The limiting hoop 4 is composed of two half annular plates. The rear end connecting part of the limiting hoop 4 is provided with a hinge. The front end connecting part of the limiting hoop 4 is fixedly installed with an upper fixed block 5 and a lower fixed block 6, respectively. The inner surface of the limiting hoop 4 is provided with a groove 16. The limiting hoop 4 is clamped on the outer wall of the first annular positioning member 7 and the second annular positioning member 8 through the groove 16.

[0036] The bottom of the upper fixed block 5 is fixedly installed with a locking block 9. The top of the lower fixed block 6 is provided with a locking groove 11, which is clamped with the locking block 9. The lower fixed block 6 is provided with a locking mechanism.

[0037] The second annular positioning member 8 is fixedly installed with a plurality of limiting rods 17 at equal intervals and uniformly on the side close to the first annular positioning member 7. The first annular positioning member 7 is provided with limiting grooves 18 corresponding in position and number to the limiting rods 17 on the side close to the second annular positioning member 8. The limiting grooves 18 are clamped with the limiting rods 17, which has the effect of positioning, and facilitates the quick and accurate closure of the first annular positioning member 7 and the second annular positioning member 8.

[0038] In one of the embodiments, the groove 16 is composed of a rectangular groove and a trapezoidal groove. The rectangular groove is matched with the first annular positioning member 7 and the second annular positioning member 8. The width of the trapezoidal groove gradually decreases from outside to inside. During the process of clamping the first annular positioning member 7 and the second annular positioning member 8 into the trapezoidal groove, the limiting hoop 4 will generate a relative extrusion force on the first annular positioning member 7 and the second annular positioning member 8, so that the first annular positioning member 7 and the second annular positioning member 8 are closed more tightly.

[0039] In one of the preferred embodiments, the locking mechanism includes two sliding holes 26, which are symmetrically distributed on both sides of the lower fixed block 6. The two sliding holes 26 are slidably inserted with a positioning column 15. The inner wall of the sliding hole 26 is provided with a sliding groove 27. The sliding groove 27 is slidably installed with a sliding block 25. The second spring 24 is fixedly installed on the inner side of the sliding groove 27, which is located on one side of the sliding block 25. The sliding block 25 is fixedly connected with the positioning column 15. The locking block 9 is provided with a plurality of tooth grooves 10 on both sides. The tooth grooves 10 are clamped with the positioning column 15. The opposite ends of the two positioning columns 15 are fixedly installed with a movable block 12.

[0040] In one of the embodiments, the two sides of the lower fixed block 6 are above the upper movable block 12, and the clamping blocks 14 are fixedly installed, the bottom of the clamping block 14 is provided with a clamping groove 19, the top of the movable block 12 is provided with a fixed groove 23, the vertical rod 20 is slidably inserted into the fixed groove 23, and the vertical rod 20 is clamped with the clamping groove 19, the inside of the fixed groove 23 is fixedly installed with the first spring 22 at the bottom end of the vertical rod 20, the side of the movable block 12 away from the lower fixed block 6 is provided with a through groove 28, the outer wall of the vertical rod 20 is fixedly installed with the connecting rod 21, and one end of the connecting rod 21 extends to the outside of the movable block 12 through the through groove 28, and the one end of the connecting rod 21 is fixedly installed with the pull ring 13.

[0041] In one of the preferred embodiments, the opposite ends of the two positioning columns 15 are inclined, and the positioning column 15 is matched with the tooth groove 10, facilitating the quick installation of the limiting hoop 4. During the installation process, the clamping effect of the vertical rod 20 and the clamping groove 19 can be released first, at this time the vertical rod 20 will be in contact with the outer surface of the clamping block 14 under the elastic action of the second spring 24, and the part of the positioning column 15 inside the locking groove 11 can still be clamped with the tooth groove 10, until the limiting hoop 4 is installed in place, and then the position of the vertical rod 20 is operated to be clamped with the clamping groove 19.

[0042] In one of the embodiments, the outer wall of the pull ring 13 is provided with an anti-skid sleeve, which can increase the friction between the hand and the pull ring 13, prevent the hand from slipping during operation, and enable the staff to pull the pull ring 13 more stably, conveniently and safely, so as to realize the operation of the limiting hoop 4 and other components, improve the use experience and work efficiency.

[0043] In one of the preferred embodiments, the inner diameter of the limiting hoop 4 is matched with the outer diameter of the machine base 1, the fan cover 2 and the front end cover 3, and the two sides of the inner surface of the limiting hoop 4 are provided with sealing pads to ensure tight fitting and enhance the sealing effect, prevent dust, water vapor and other substances from entering, and improve the motor protection performance and running stability.

[0044] The utility model discloses a working principle for: the device not involved part is same with prior art or can adopt prior art to realize, uses, if need to disassemble the front end cover 3 and the fan cover 2, directly pull two pull -out loops 13 and make its reverse movement, and pull -out loop 13 drive movable block 12 synchronous movement, and the displacement of movable block 12 promotes the positioning column 15 to move along with it, and the positioning column 15 moves along and drive the sliding block 25 to slide on the sliding slot 27, and the second spring 24 is extruded to the pressure. With the continuous movement of positioning column 15, it will separate the locking block 9 on the corresponding tooth slot 10 inside. When locking block 9 loses the limiting effect of tooth slot 10 and positioning column 15, it can be directly taken out from locking slot 11. At this time, the locking mechanism between upper fixed block 5 and lower fixed block 6 loses the fixed function, and the front end cover 3 and the fan cover 2 can be taken down from the limiting hoop 4 of the connecting place of machine base 1. The front end cover 3 and the fan cover 2 lose the fixed constraint of limiting hoop 4 in the connecting place of machine base 1, and the front end cover 3 and the fan cover 2 can be directly disassembled. When installing, the fan cover 2 and the front end cover 3 are accurately closed in both ends of machine base 1, the first annular positioning piece 7 and the second annular positioning piece 8 of connecting place are closed to each other, then the limiting hoop 4 is tightly clamped on the outer wall of first annular positioning piece 7 and second annular positioning piece 8. At the same time, the locking block 9 on the bottom of upper fixed block 5 is clamped into locking slot 11 on lower fixed block 6. In the process of locking block 9 clamping into locking slot 11, it will contact with the inclined end of positioning column 15, and then push positioning column 15 to slide into sliding hole 26 automatically, by the elastic recovery force of second spring 24, make positioning column 15 automatically form the clamping state with the tooth slot 10 on locking block 9. The greater the depth of locking block 9 into locking slot 11, the more firm the fixed effect of limiting hoop 4 in the connecting place of fan cover 2 and front end cover 3 and machine base 1, thus completes the installation operation of fan cover 2 and front end cover 3.

[0045] When the limiting hoop 4 is in the closed state, the locking mechanism works to tightly close the upper fixed block 5 and the lower fixed block 6. At this time, the positioning column 15 is in the engagement state with the tooth groove 10 on the locking block 9, and in this case, the vertical rod 20 is clamped into the clamping groove 19 on the clamping block 14 under the elastic force of the first spring 22, thereby limiting the position of the movable block 12 in the transverse direction. Since the movable block 12 is connected with the positioning column 15, the position of the movable block 12 is limited, which limits the position of the positioning column 15, so that the positioning column 15 is not only clamped in the tooth groove 10 by the elastic force of the second spring 24, but also further fixed by the clamping cooperation of the vertical rod 20 and the clamping groove 19. This double fixing mode effectively enhances the stability of the clamping of the positioning column 15 and the tooth groove 10, thereby improving the stability of the fixed state of the limiting hoop 4 to the fan cover 2 and the front end cover 3. When the clamping between the vertical rod 20 and the clamping groove 19 needs to be released, the operator can directly pull the pull ring 13 downward, and this operation does not additionally increase the complex steps. The worker can still adjust the positions of the vertical rod 20 and the positioning column 15 by operating the pull ring 13, thereby quickly realizing the operation of unfolding or closing the limiting hoop 4. The whole process is convenient and fast, and has high practicability.

[0046] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only preferred examples of the utility model and do not limit the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A maintenance-free explosion-proof motor, characterized by, It includes: The machine base (1), one end of the machine base (1) is provided with a front end cover (3), the other end of the machine base (1) is provided with a fan cover (2), the fan cover (2) and the front end cover (3) are fixedly installed on the outer wall near one end of the machine base (1) Second annular positioning part (8), the outer wall of both ends of the machine base (1) is fixedly installed with first annular positioning part (7), the connecting part of the machine base (1) and the fan cover (2) and the front end cover (3) is provided with a limiting hoop (4); The limiting hoop (4) is composed of two half annular plates, the rear end connecting part of the limiting hoop (4) is provided with a hinge, the front end connecting part of the limiting hoop (4) is fixedly installed with upper fixed block (5) and lower fixed block (6) respectively, the inner surface of the limiting hoop (4) is provided with a groove (16), and the limiting hoop (4) is connected with the outer wall of the first annular positioning part (7) and the second annular positioning part (8) through the groove (16); The bottom of the upper fixed block (5) is fixedly installed with locking block (9), the top of the lower fixed block (6) is provided with locking groove (11), and the locking groove (11) is connected with the locking block (9), the lower fixed block (6) is provided with locking mechanism.

2. A maintenance-friendly explosion-proof electric motor according to claim 1, characterized in that: The side of the second annular positioning part (8) near the first annular positioning part (7) is fixedly installed with a plurality of limiting rods (17) at equal intervals, the side of the first annular positioning part (7) near the second annular positioning part (8) is provided with limiting groove (18) corresponding to the position and number of limiting rod (17), and the limiting groove (18) is connected with the limiting rod (17).

3. A maintenance-friendly explosion-proof motor according to claim 1, characterized in that: The groove (16) is composed of rectangular groove and trapezoidal groove, and the rectangular groove is matched with the first annular positioning part (7) and the second annular positioning part (8), the width of the trapezoidal groove gradually decreases from outside to inside.

4. A maintenance-friendly explosion-proof motor according to claim 1, characterized in that: The locking mechanism includes two sliding holes (26), two sliding holes (26) are symmetrically distributed on both sides of the lower fixed block (6), two sliding holes (26) are slidably connected with positioning column (15), the bottom of the inner wall of the sliding hole (26) is provided with sliding groove (27), the sliding groove (27) is slidably connected with sliding block (25), the inside of the sliding groove (27) is fixedly installed with second spring (24) on one side of the sliding block (25), the sliding block (25) is fixedly connected with the positioning column (15), the two sides of the locking block (9) are provided with a plurality of tooth grooves (10), and the tooth grooves (10) are connected with the positioning column (15), the opposite ends of the two positioning columns (15) are fixedly installed with movable block (12).

5. A maintenance-friendly explosion-proof electric motor according to claim 4, characterized in that: Both sides of the lower fixed block (6) are above the movable block (12) and are fixedly installed with the clamping blocks (14), the bottom of the clamping block (14) is provided with a clamping groove (19), the top of the movable block (12) is provided with a fixed groove (23), the fixed groove (23) is slidably inserted with a vertical rod (20), and the vertical rod (20) is connected with the clamping groove (19), the inside of the fixed groove (23) is fixedly installed with a first spring (22) at the bottom end of the vertical rod (20), the side of the movable block (12) away from the lower fixed block (6) is provided with a through groove (28), the outer wall of the vertical rod (20) is fixedly installed with a connecting rod (21), and one end of the connecting rod (21) extends to the outside of the movable block (12) through the through groove (28), and one end of the connecting rod (21) is fixedly installed with a pull ring (13).

6. A maintenance-friendly explosion-proof motor according to claim 4, characterized in that: The opposite ends of the two positioning columns (15) are inclined, and the positioning column (15) is matched with the tooth groove (10).

7. A maintenance-friendly explosion-proof motor according to claim 5, characterized in that: The outer wall of the pull ring (13) is provided with an anti-skid sleeve.

8. A maintenance-friendly explosion-proof motor according to claim 1, characterized in that: The inner diameter of the limiting hoop (4) is matched with the outer diameter of the machine base (1), the fan cover (2) and the front end cover (3), and the inner surfaces of the limiting hoop (4) are provided with sealing pads on both sides.

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