Compressor fixing and tensioning device

Abstract

The utility model discloses a compressor fixing and tensioning device, which belongs to the field of compressor installation, can solve the problem of bolt breakage of an original mechanism, and is small in structure space, low in cost, simple and reliable compared with a torsion tensioner. The device mainly comprises a mounting support and a compressor, the mounting support comprises a bottom plate, a second vertical plate and an adaptive block are arranged on the bottom plate, a front lug plate and a rear lug plate are arranged on the compressor, a connecting plate is mounted on the front lug plate, a hinge block bolt is mounted on the connecting plate, and a tensioning bolt is arranged between the second vertical plate and the hinge block bolt. One end of the tensioning bolt is in sliding connection with the hinge block bolt, limiting pieces are arranged on the tensioning bolt on the two sides of the hinge block bolt respectively, and the other end of the tensioning bolt is hinged to the reamed hole bolt. The fixing device is mainly used for fixing the compressor of the engineering machinery.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of compressor installation, and concretely relates to a compressor fixed tensioning device. BACKGROUND

[0002] At present, the air conditioner refrigeration of fuel oil engineering machinery is carried out, and the refrigerant operation air conditioner compressor is generally operated by the engine power take-off, the compressor is fixed on the engine reserved mounting bolt hole position through the support, the compressor transmission belt is connected with the engine pulley, and the tension of the transmission belt can be adjusted through the bolt.

[0003] In the existing structure, the adjusting bolt is fixed on the lower right side, when the engine works to drive the compressor to work, the belt elasticity and the compressor load make the adjusting bolt bear the alternating impact load, the force of the adjusting bolt and the single ear connection of the compressor is large, the transmission belt has a large spacing with the adjusting bolt, and a horizontal torque is formed at the same time, so that the adjusting bolt is prone to fatigue fracture. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of compressor fixed tensioning devices, which can solve the problem of original mechanism bolt fracture, and structure is relatively torsion tensioner structure small, low in cost, simple and reliable.

[0005] The utility model is realized through the following technical solutions:

[0006] A kind of compressor fixed tensioning device, including mounting bracket and compressor, mounting bracket includes bottom plate, bottom plate is equipped with vertical plate two and adapter block respectively, vertical plate two is equipped with hole C, adapter block is equipped with hole D, compressor is equipped with front ear plate and rear ear plate respectively, front ear plate and rear ear plate are all equipped with a plurality of holes E, the connecting plate is installed on the front ear plate, the hinged block bolt is installed on the connecting plate, tension bolt is arranged between vertical plate two and hinged block bolt, one end of tension bolt is slidably connected with hinged block bolt, limiting piece is respectively arranged on the tension bolt on the two sides of hinged block bolt, the other end of tension bolt is hinged to hinged hole bolt, so that hinged block bolt can slide on one end of tension bolt, the other end of tension bolt can rotate on hinged hole bolt, hinged hole bolt is fixedly installed on the hole C of vertical plate two;Front ear plate, adapter block and rear ear plate are hinged by hinged bolt, hinged bolt passes through the hole E of rear ear plate, the hole C of adapter block and the hole E of front ear plate in turn and is fastened with lock nut, so that adapter block can rotate between front ear plate and rear ear plate.

[0007] Further, the limiting piece is a limiting nut, a high-elasticity compression spring is arranged on one side of the hinge block bolt, a low-elasticity compression spring is arranged on the other side of the hinge block bolt, one end of the high-elasticity compression spring abuts against the hinge block bolt, the other end of the high-elasticity compression spring abuts against the limiting nut, one end of the low-elasticity compression spring abuts against the hinge block bolt, and the other end of the low-elasticity compression spring abuts against the limiting nut.

[0008] Further, the connecting plate is an arched plate, the connecting plate is installed on the front ear plate through bolts and nuts, one end of the hinge block bolt is a mounting block, a hole B is arranged on the mounting block, the tension bolt passes through the hole B, the other end of the hinge block bolt is a stepped shaft, the front end surface of the stepped shaft is a smooth surface, the rear end surface of the stepped shaft is provided with threads, and the stepped shaft passes through the connecting plate and is fastened through a gasket and a locking nut.

[0009] Further, the mounting end of the hinge hole bolt is a stepped shaft, threads are arranged on the end surface of the end of the stepped shaft, the hinge hole bolt sequentially passes through the hinge ring port A of the tension bolt, the hole C on the second vertical plate, and is fastened through a gasket and a locking nut.

[0010] Further, the mounting bracket further comprises a first vertical plate, a lap joint port E is arranged on the first vertical plate, a lap joint port F is arranged on the second vertical plate, the lap joint port E and the lap joint port F are lap joint matched, the lap joint portions of the first vertical plate and the second vertical plate are welded and then integrally welded on the bottom plate, the bottom plate is installed on the frame of the engine, and the adaptive block is welded on the bottom plate on one side of the second vertical plate.

[0011] Further, a second rib plate is welded between the front end of the first vertical plate and the bottom plate, and a first rib plate is welded between the side surface of the first vertical plate and the bottom plate.

[0012] Further, the lower end of the adaptive block is provided with a lap joint surface G2, the second rib plate is provided with a lap joint surface G1, and the lap joint surface G2 and the lap joint surface G1 are matched, so that when the adaptive block is subjected to a force downward to the left, the lap joint surface G1 of the second rib plate can effectively vertically support the adaptive block upward.

[0013] Further, a waist-shaped hole M and a circular hole N are formed in the first vertical plate, which are used for avoiding the stroke track of the hole E hinge ear of the compressor when the tension transmission belt is installed, so as to avoid interference.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] The single-ear stress of the original compressor is changed to double-ear stress, the mounting bracket of the compressor is welded at the lower part, the tensioning bolt is at the upper part, the hinged point of the tensioning bolt rotates and slides freely, the mounting bracket of the compressor bears the main load, the tensioning bolt only bears the tensile stress and the compressive stress, the fatigue life of the tensioning bolt is significantly improved, the hinged hole bolt, the hinged block bolt and the connecting plate used for connecting the tensioning bolt adopt corresponding gap sliding fit, the bearing surface cylinder is attached, the hinged sliding can weaken the torque generated by the binding constraint, the hinged hole bolt and the hinged block bolt adopt stepped section design, the cross-sectional area of the stress part is increased, and the safety factor is improved, and the welding connection shape of the mounting bracket of the compressor is reasonable, the base material bears stress, and the safety factors of the bending and rigidity and other strengths of the welding section are improved.

[0016] Therefore, the bolt fracture problem of the original mechanism can be solved, and the structure is relatively small in structure space and low in cost, and simple and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic installation diagram of the utility model;

[0018] Figure 2 is a schematic structure diagram of the utility model;

[0019] Figure 3 is a schematic structure diagram of the front ear plate and the rear ear plate of the utility model;

[0020] Figure 4 is a schematic installation diagram of the high-elasticity compression spring and the low-elasticity compression spring of the utility model;

[0021] Figure 5 is a schematic structure diagram of the tensioning bolt of the utility model;

[0022] Figure 6 is a schematic structure diagram of the connecting plate and the hinged block bolt of the utility model;

[0023] Figure 7 is a schematic structure diagram of the mounting bracket of the utility model;

[0024] Figure 8 is an explosion view of the mounting bracket of the utility model.

[0025] In the drawing: 101, hinged hole bolt; 102, hinged bolt; 103, tensioning bolt; 104, connecting plate; 105, hinged block bolt; 115, high-elasticity compression spring; 116, low-elasticity compression spring; 2, tensioning transmission belt; 3, compressor; 301, front ear plate; 302, rear ear plate; 501, adaptive block; 502, second rib plate; 503, bottom plate; 504, second vertical plate; 505, first vertical plate; 506, first rib plate. DETAILED DESCRIPTION

[0026] The utility model is further described below with reference to the drawings.

[0027] Embodiment 1

[0028] As Figure 2 – Figure 3 A compressor fixed tensioning device, comprising a mounting bracket and a compressor 3, the mounting bracket comprises a bottom plate 503, the bottom plate 503 is respectively provided with an upright plate two 504 and an adaptive block 501, the upright plate two 504 is provided with a hole C, the adaptive block 501 is provided with a hole D, the compressor 3 is respectively provided with a front lug plate 301 and a rear lug plate 302, the front lug plate 301 and the rear lug plate 302 are all provided with a plurality of holes E, the front lug plate 301 is installed with a connecting plate 104, the connecting plate 104 is installed with a hinged block bolt 105, the upright plate two 504 and the hinged block bolt 105 are provided with a tensioning bolt 103, one end of the tensioning bolt 103 is slidably connected with the hinged block bolt 105, the tensioning bolt 103 on the both sides of the hinged block bolt 105 is respectively provided with a limiting piece, the other end of the tensioning bolt 103 is hinged to a hinged hole bolt 101, so that the hinged block bolt 105 can slide on one end of the tensioning bolt 103, the other end of the tensioning bolt 103 can rotate on the hinged hole bolt 101, the bending moment of the tensioning bolt 103 is reduced, the failure rate of the tensioning bolt 103 is reduced, and the hinged hole bolt 101 is fixedly installed on the hole C of the upright plate two 504; the front lug plate 301, the adaptive block 501 and the rear lug plate 302 are hinged through a hinged bolt 102, the hinged bolt 102 passes through the hole E of the rear lug plate 302, the hole C of the adaptive block 501 and the hole E of the front lug plate 301 in sequence and is fastened with a locking nut, so that the adaptive block 501 can rotate between the front lug plate 301 and the rear lug plate 302, local stress is reduced, and the transmission reaction torque of the tensioning transmission belt 2 is balanced; the two connecting points of the tensioning bolt 103 can freely rotate and slide, so that the tensioning bolt 103 can mainly bear tensile stress during the fastening process, bending moment, torque and other composite stresses are avoided, and fatigue life is prolonged.

[0029] Embodiment 2

[0030] As Figure 4 – Figure 8As shown, a compressor fixed tensioning device, the limiting piece is a limiting nut, the high elastic compression spring 115 is arranged on the tensioning bolt 103 on one side of the articulated block bolt 105, the low elastic compression spring 116 is arranged on the tensioning bolt 103 on the other side of the articulated block bolt 105, one end of the high elastic compression spring 115 abuts on the articulated block bolt 105, the other end of the high elastic compression spring 115 abuts on the limiting nut, one end of the low elastic compression spring 116 abuts on the articulated block bolt 105, the other end of the low elastic compression spring 116 abuts on the limiting nut; when the elastic plastic deformation length of the tensioning transmission belt 2 increases, the high elastic compression spring 115 automatically elastically expands, the low elastic compression spring 116 is compressed accordingly, the compressor 3 swings around the articulated bolt 102, so that the tensioning transmission belt 2 is automatically tensioned, and the elastic deformation of the tensioning transmission belt 2 after running for a period of time is avoided; the sliding amount of the tensioning bolt 103 on the articulated block bolt 105 is controlled by adjusting the relative positions of the two limiting nuts on the tensioning bolt 103 (and then the compression amounts of the high elastic compression spring 115 and the low elastic compression spring 116).

[0031] The connecting plate 104 is an arched plate member, the connecting plate 104 is installed on the front ear plate 301 through a bolt and a nut, the connecting plate 104 is connected to the front ear plate 301 of the compressor 3 at two points and bears force equally, one end of the articulated block bolt 105 is a mounting block, the mounting block is provided with a hole B, the tensioning bolt 103 passes through the hole B, the other end of the articulated block bolt 105 is a stepped shaft (the cross-sectional area of the stress position is increased, the safety factor is improved, and the stepped surface L of the stepped shaft plays a role of axial positioning, the width of the stepped surface L of the stepped shaft is greater than the width of the opening M on the connecting plate 104, so as to ensure that the tensioning bolt 103 can be axially rotated by a certain angle), the front end surface of the stepped shaft is a smooth surface, the rear end surface of the stepped shaft is provided with a thread, the stepped shaft passes through the connecting plate 104 and is installed through a gasket and a locking nut, the articulated block bolt 105 is installed on the connecting plate 104 and can be freely rotated (clearance fit);

[0032] The mounting end of the hinge hole bolt 101 is a stepped shaft, the end surface of the end of the stepped shaft is provided with a thread, the hinge hole bolt 101 passes through the hinge ring opening A of the tensioning bolt 103, the hole C on the vertical plate two 504, and then is fastened through a gasket and a locking nut; the hinge ring opening A and the hinge hole bolt 101 are clearance fit; the width of the H cylindrical surface of the hinge hole bolt 101 is greater than the sum of the width of the cylindrical surface of the hinge ring opening A of the tensioning bolt 103 and the thickness of the gasket, so that the tensioning bolt 103 can be rotated by a certain angle;

[0033] The mounting bracket further comprises a vertical plate one 505, the vertical plate one 505 is provided with a lap joint G, the vertical plate two 504 is provided with a lap joint F, the lap joint G and the lap joint F are lap jointed, the lap joint of the vertical plate one 505 and the vertical plate two 504 is welded and then integrally welded on the bottom plate 503 (the lap joint of the vertical plate two 504 and the vertical plate one 505 is cut by the parent material to bear stress, which can effectively improve the structural fatigue life, and avoid the defects of poor welding and low fatigue life of the weld), as shown in Figure 1 The bottom plate 503 of the mounting bracket is mounted on the frame of the engine, the adapter block 501 is welded on the bottom plate 503 on one side of the vertical plate two 504, the vertical plate two 504 is transversely surface-fitted with the adapter block 501, the hole C of the vertical plate two 504 fixes the tension bolt 103 on the upper part of the compressor 3, the vertical plate two 504, the adapter block 501, the compressor 3, the tension bolt 103 and other connecting parts form a plane force balance, which can effectively avoid the stress generated by the lateral bending moment of the parts;

[0034] The front end of the vertical plate one 505 and the bottom plate 503 are further welded with the rib plate two 502, and the side surface of the vertical plate one 505 and the bottom plate 503 are further welded with the rib plate one 506; the vertical plate two 504 and the rib plate two 502 adopt a C-shaped concave structure, which can effectively avoid the cylindrical surface of the compressor;

[0035] The lower end of the adapter block 501 is provided with a lap joint surface G2, the rib plate two 502 is provided with a lap joint surface G1, and the lap joint surface G2 and the lap joint surface G1 are matched (here, the parent material bears stress, rather than the weld shear stress, which effectively guarantees the structural fatigue life), when the adapter block 501 is subjected to a force downward to the left, the lap joint surface G1 of the rib plate two 502 can effectively vertically support the adapter block 501 upward;

[0036] The vertical plate one 505 is provided with a waist-shaped hole M and a circular hole N, which are used to avoid the stroke track of the hole E hinge ear of the compressor 3 when the tension transmission belt 2 is installed, and to avoid interference, and other parts are the same as in example 1.

[0037] The compressor 3 is connected with the engine through the tension transmission belt 2, and the engine runs to output power to the compressor 3, the tension transmission belt 2 adopts a toothed belt, which has good heat dissipation effect and toughness and prolongs the service life.

Claims

1. A compressor fixing and tensioning device, comprising a mounting bracket and a compressor (3), wherein the mounting bracket comprises a base plate (503), a second vertical plate (504) and an adapter block (501) are respectively provided on the base plate (503), and a front ear plate (301) and a rear ear plate (302) are respectively provided on the compressor (3), characterized in that: The front ear plate (301) is provided with a connecting plate (104), and a hinge block bolt (105) is provided on the connecting plate (104). A tensioning bolt (103) is provided between the second vertical plate (504) and the hinge block bolt (105). One end of the tensioning bolt (103) is slidably connected to the hinge block bolt (105). Limiting pieces are provided on the tensioning bolts (103) on both sides of the hinge block bolt (105). The other end of the tensioning bolt (103) is hinged to the hinge hole bolt (101), and the hinge hole bolt (101) is fixedly installed on the second vertical plate (504). The front ear plate (301), the adapter block (501) and the rear ear plate (302) are hinged by the hinge bolt (102).

2. The compressor fixing and tensioning device according to claim 1, characterized in that: The limiting member is a limiting nut. A high-elasticity compression spring (115) is provided on the tensioning bolt (103) on one side of the hinge block bolt (105), and a low-elasticity compression spring (116) is provided on the tensioning bolt (103) on the other side of the hinge block bolt (105). One end of the high-elasticity compression spring (115) is against the hinge block bolt (105), and the other end of the high-elasticity compression spring (115) is against the limiting nut. One end of the low-elasticity compression spring (116) is against the hinge block bolt (105), and the other end of the low-elasticity compression spring (116) is against the limiting nut.

3. The compressor fixing and tensioning device according to claim 1, characterized in that: The connecting plate (104) is an arched plate, and the connecting plate (104) is installed on the front ear plate (301) through bolts and nuts. One end of the hinge block bolt (105) is a mounting block, and the mounting block is provided with a hole B. The tensioning bolt (103) passes through the hole B. The other end of the hinge block bolt (105) is a stepped shaft, the front end surface of the stepped shaft is a smooth surface, and the rear end surface of the stepped shaft is provided with a thread. The stepped shaft passes through the connecting plate (104) and is fastened by a gasket and a locking nut.

4. The compressor fixing and tensioning device according to claim 1, characterized in that: The mounting end of the hinged hole bolt (101) is a stepped shaft, and a thread is provided on the end surface of the stepped shaft. The hinged hole bolt (101) passes through the hinged ring A of the tensioning bolt (103) and the hole C on the second vertical plate (504) in sequence, and is then fastened by a gasket and a locking nut.

5. The compressor fixing and tensioning device according to claim 1, characterized in that: The mounting bracket further comprises a vertical plate (505), wherein the vertical plate (505) is provided with an overlap interface E, and the vertical plate (504) is provided with an overlap interface F, wherein the overlap interface E overlaps and cooperates with the overlap interface F, and the overlap of the vertical plate (505) and the vertical plate (504) is welded and then integrally welded to the bottom plate (503), and the bottom plate (503) is mounted on the frame of the engine, and the adapter block (501) is welded to the bottom plate (503) on one side of the vertical plate (504).

6. The compressor fixing and tensioning device according to claim 5, characterized in that: A rib plate 2 (502) is welded between the front end of the vertical plate 1 (505) and the bottom plate (503), and a rib plate 1 (506) is welded between the side surface of the vertical plate 1 (505) and the bottom plate (503).

7. The compressor fixing and tensioning device according to claim 6, characterized in that: The lower end of the adapting block (501) is provided with an overlapping surface G2, and the second stiffener plate (502) is provided with an overlapping surface G1, and the overlapping surface G2 and the overlapping surface G1 are matched.

8. The compressor fixing and tensioning device according to claim 6, characterized in that: A waist-shaped hole M and a circular hole N are provided on the vertical plate 1 (505).

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